This prose specification is one component of a Work Product that also includes:
Code lists for constraint validation:
Context/value Association files for constraint validation:
Document models of information bundles:
Default validation test environment:
XML examples:
Annotated XSD schemas:
Runtime XSD schemas:
The ZIP containing the complete files of this release is found in the directory:
This specification supersedes:
[UBL-2.1] Universal Business Language Version 2.1. Edited by Jon Bosak, Tim McGrath and G. Ken Holman. 04 November 2013. OASIS Standard. http://docs.oasis-open.org/ubl/os-UBL-2.1/UBL-2.1.html.
urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2 |
urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2 |
urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2 |
urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2 |
urn:oasis:names:specification:ubl:schema:xsd:QualifiedDataTypes-2 |
urn:oasis:names:specification:ubl:schema:xsd:SignatureAggregateComponents-2 |
urn:oasis:names:specification:ubl:schema:xsd:SignatureBasicComponents-2 |
urn:oasis:names:specification:ubl:schema:xsd:UnqualifiedDataTypes-2 |
urn:oasis:names:specification:ubl:schema:xsd:ApplicationResponse-2 |
urn:oasis:names:specification:ubl:schema:xsd:AttachedDocument-2 |
urn:oasis:names:specification:ubl:schema:xsd:AwardedNotification-2 |
urn:oasis:names:specification:ubl:schema:xsd:BillOfLading-2 |
urn:oasis:names:specification:ubl:schema:xsd:BusinessCard-2 |
urn:oasis:names:specification:ubl:schema:xsd:CallForTenders-2 |
urn:oasis:names:specification:ubl:schema:xsd:Catalogue-2 |
urn:oasis:names:specification:ubl:schema:xsd:CatalogueDeletion-2 |
urn:oasis:names:specification:ubl:schema:xsd:CatalogueItemSpecificationUpdate-2 |
urn:oasis:names:specification:ubl:schema:xsd:CataloguePricingUpdate-2 |
urn:oasis:names:specification:ubl:schema:xsd:CatalogueRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:CertificateOfOrigin-2 |
urn:oasis:names:specification:ubl:schema:xsd:ContractAwardNotice-2 |
urn:oasis:names:specification:ubl:schema:xsd:ContractNotice-2 |
urn:oasis:names:specification:ubl:schema:xsd:CreditNote-2 |
urn:oasis:names:specification:ubl:schema:xsd:DebitNote-2 |
urn:oasis:names:specification:ubl:schema:xsd:DespatchAdvice-2 |
urn:oasis:names:specification:ubl:schema:xsd:DigitalAgreement-2 |
urn:oasis:names:specification:ubl:schema:xsd:DigitalCapability-2 |
urn:oasis:names:specification:ubl:schema:xsd:DocumentStatus-2 |
urn:oasis:names:specification:ubl:schema:xsd:DocumentStatusRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:Enquiry-2 |
urn:oasis:names:specification:ubl:schema:xsd:EnquiryResponse-2 |
urn:oasis:names:specification:ubl:schema:xsd:ExceptionCriteria-2 |
urn:oasis:names:specification:ubl:schema:xsd:ExceptionNotification-2 |
urn:oasis:names:specification:ubl:schema:xsd:ExpressionOfInterestRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:ExpressionOfInterestResponse-2 |
urn:oasis:names:specification:ubl:schema:xsd:Forecast-2 |
urn:oasis:names:specification:ubl:schema:xsd:ForecastRevision-2 |
urn:oasis:names:specification:ubl:schema:xsd:ForwardingInstructions-2 |
urn:oasis:names:specification:ubl:schema:xsd:FreightInvoice-2 |
urn:oasis:names:specification:ubl:schema:xsd:FulfilmentCancellation-2 |
urn:oasis:names:specification:ubl:schema:xsd:GoodsItemItinerary-2 |
urn:oasis:names:specification:ubl:schema:xsd:GuaranteeCertificate-2 |
urn:oasis:names:specification:ubl:schema:xsd:InstructionForReturns-2 |
urn:oasis:names:specification:ubl:schema:xsd:InventoryReport-2 |
urn:oasis:names:specification:ubl:schema:xsd:Invoice-2 |
urn:oasis:names:specification:ubl:schema:xsd:ItemInformationRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:Order-2 |
urn:oasis:names:specification:ubl:schema:xsd:OrderCancellation-2 |
urn:oasis:names:specification:ubl:schema:xsd:OrderChange-2 |
urn:oasis:names:specification:ubl:schema:xsd:OrderResponse-2 |
urn:oasis:names:specification:ubl:schema:xsd:OrderResponseSimple-2 |
urn:oasis:names:specification:ubl:schema:xsd:PackingList-2 |
urn:oasis:names:specification:ubl:schema:xsd:PriorInformationNotice-2 |
urn:oasis:names:specification:ubl:schema:xsd:ProductActivity-2 |
urn:oasis:names:specification:ubl:schema:xsd:QualificationApplicationRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:QualificationApplicationResponse-2 |
urn:oasis:names:specification:ubl:schema:xsd:Quotation-2 |
urn:oasis:names:specification:ubl:schema:xsd:ReceiptAdvice-2 |
urn:oasis:names:specification:ubl:schema:xsd:Reminder-2 |
urn:oasis:names:specification:ubl:schema:xsd:RemittanceAdvice-2 |
urn:oasis:names:specification:ubl:schema:xsd:RequestForQuotation-2 |
urn:oasis:names:specification:ubl:schema:xsd:RetailEvent-2 |
urn:oasis:names:specification:ubl:schema:xsd:SelfBilledCreditNote-2 |
urn:oasis:names:specification:ubl:schema:xsd:SelfBilledInvoice-2 |
urn:oasis:names:specification:ubl:schema:xsd:Statement-2 |
urn:oasis:names:specification:ubl:schema:xsd:StockAvailabilityReport-2 |
urn:oasis:names:specification:ubl:schema:xsd:Tender-2 |
urn:oasis:names:specification:ubl:schema:xsd:TenderContract-2 |
urn:oasis:names:specification:ubl:schema:xsd:TenderReceipt-2 |
urn:oasis:names:specification:ubl:schema:xsd:TenderStatus-2 |
urn:oasis:names:specification:ubl:schema:xsd:TenderStatusRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:TenderWithdrawal-2 |
urn:oasis:names:specification:ubl:schema:xsd:TendererQualification-2 |
urn:oasis:names:specification:ubl:schema:xsd:TendererQualificationResponse-2 |
urn:oasis:names:specification:ubl:schema:xsd:TradeItemLocationProfile-2 |
urn:oasis:names:specification:ubl:schema:xsd:TransportExecutionPlan-2 |
urn:oasis:names:specification:ubl:schema:xsd:TransportExecutionPlanRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:TransportProgressStatus-2 |
urn:oasis:names:specification:ubl:schema:xsd:TransportProgressStatusRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:TransportServiceDescription-2 |
urn:oasis:names:specification:ubl:schema:xsd:TransportServiceDescriptionRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:TransportationStatus-2 |
urn:oasis:names:specification:ubl:schema:xsd:TransportationStatusRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:UnawardedNotification-2 |
urn:oasis:names:specification:ubl:schema:xsd:UnsubscribeFromProcedureRequest-2 |
urn:oasis:names:specification:ubl:schema:xsd:UnsubscribeFromProcedureResponse-2 |
urn:oasis:names:specification:ubl:schema:xsd:UtilityStatement-2 |
urn:oasis:names:specification:ubl:schema:xsd:Waybill-2 |
urn:oasis:names:specification:ubl:schema:xsd:WeightStatement-2 |
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When referencing this specification the following citation format should be used:
[UBL-2.2] Universal Business Language Version 2.2. Edited by G. Ken Holman. 22 March 2018. OASIS Committee Specification 01. http://docs.oasis-open.org/ubl/cs01-UBL-2.2/UBL-2.2.html. Latest version: http://docs.oasis-open.org/ubl/UBL-2.2.html.
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CPFR is a registered trademark of the Voluntary Interindustry Commerce Solutions (VICS) association. The term “CPFR” is not to be used in any format without written permission from VICS. For more information on VICS and CPFR, visit www.vics.org.
Since its approval as a W3C recommendation in 1998, XML has been adopted in a number of industries as a framework for the definition of the messages exchanged in electronic commerce. The widespread use of XML has led to the development of multiple industry-specific XML versions of such basic documents as purchase orders, shipping notices, and invoices.
While industry-specific data formats have the advantage of maximal optimization for their business context, the existence of different formats to accomplish the same purpose in different business domains is attended by a number of significant disadvantages as well.
Developing and maintaining multiple versions of common business documents like purchase orders and invoices is a major duplication of effort.
Creating and maintaining multiple adapters to enable trading relationships across domain boundaries is an even greater effort.
The existence of multiple XML formats makes it much harder to integrate XML business messages with back-office systems.
The need to support an arbitrary number of XML formats makes tools more expensive and trained workers harder to find.
The OASIS Universal Business Language (UBL) is intended to help solve these problems by defining a generic XML interchange format for business documents that can be restricted or extended to meet the requirements of particular industries. Specifically, UBL provides the following:
A suite of structured business objects and their associated semantics expressed as reusable data components and common business documents.
A library of XML schemas for reusable data components such as “Address”, “Item”, and “Payment”—the common data elements of everyday business documents.
A set of XML schemas for common business documents such as “Order”, “Despatch Advice”, and “Invoice” that are constructed from the UBL library components and can be used in generic procurement and transportation contexts.
A standard basis for XML business schemas provides the following advantages:
Lower cost of integration, both among and within enterprises, through the reuse of common data structures.
Lower cost of commercial software, because software written to process a given XML tag set is much easier to develop than software that can handle an unlimited number of tag sets.
An easier learning curve, because users need master just a single library.
Lower cost of entry and therefore quicker adoption by micro, small and medium-size enterprises (MSMEs).
Standardized training, resulting in many skilled workers.
A universally available pool of system integrators.
Standardized, inexpensive data input and output tools.
A standard target for inexpensive off-the-shelf business software.
UBL is designed to provide a universally understood and recognized syntax for legally binding business documents and to operate within a standard business framework such as ISO/IEC 15000 (ebXML) to provide a complete, standards-based infrastructure that can extend the benefits of existing EDI systems to businesses of all sizes. UBL is freely available to everyone without legal encumbrance or licensing fees.
UBL schemas are modular, reusable, and extensible in XML-aware ways. As an implementation of UN/CEFACT Core Components Technical Specification 2.01, the UBL Library is based on a conceptual model of information components known as Business Information Entities (BIEs). These components are assembled into specific document models such as Order and Invoice. These document models are then transformed in accordance with UBL Naming and Design Rules’ [UBL-NDR] use of the OASIS Business Document Naming and Design Rules [BD-NDR] into W3C XSD schema syntax. This approach facilitates the creation of UBL-based document types beyond those specified in this release.
UBL can also be regarded as a generic Open-edi Configuration in the perspective of the Open-edi Reference Model (ISO/IEC 14662:2010). This is described in more detail in Appendix H, The Open-edi reference model perspective of UBL (Non-Normative).
The intended primary audiences for this specification are:
those who analyse and document business or processes or systems, assessing the business model or its integration with technology;
those involved in the identification of business requirements for solutions to support the exchange of the digital business documents;
those involved in the design, operation and implementation of software and services for the exchange of digital business documents; or
those involved in the design, integration and operation of business applications dealing with digital documents.
Associated Signature Container (simple form). A standard container that associates a single data object with one or more detached signature(s) that apply to it. See [ASiC].
A value generated from the application of a private key to a message via a cryptographic algorithm such that it has the properties of integrity and message authentication and/or signer authentication. A signature may be (non-exclusively) described as detached, enveloping, or enveloped ([xmldsig], with modifications).
A set of information components that are exchanged as part of a business transaction; for example, in placing an order.
The processing of data from its source to its derived form. Typical transforms include XML Canonicalization [XML C14N] and XSLT [XSLT 2.0].
An XML document definition conforming to the W3C XML Schema language [XSD1][XSD2].
The terms Core Component (CC), Basic Core Component (BCC), Aggregate Core Component (ACC), Association Core Component (ASCC), Business Information Entity (BIE), Basic Business Information Entity (BBIE), and Aggregate Business Information Entity (ABIE) are used in this specification with the meanings given in [CCTS].
The terms Object Class, Property Term, Representation Term, and Qualifier are used in this specification with the meanings given in [ISO11179].
The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD, SHOULD NOT, RECOMMENDED, MAY and OPTIONAL, when they appear in this document, are to be interpreted as described in [RFC2119].
ABIE |
Aggregate Business Information Entity |
AdES |
Advanced Electronic Signature |
ASBIE |
Association Business Information Entity |
BBIE |
Basic Business Information Entity |
BIE |
Business Information Entity |
C14N |
Canonicalization |
CPFR |
Collaborative Planning, Forecasting, and Replenishment [CPFR] |
DSig |
Digital Signature |
EDI |
Electronic Data Interchange |
IEC |
International Electrotechnical Commission |
ISO |
International Organization for Standardization |
NDR |
Naming and Design Rules |
QC |
Qualified Certificate |
QS |
Qualified Signature |
UML |
Unified Modeling Language [UML] |
UN/CEFACT |
United Nations Centre for Trade Facilitation and Electronic Business |
URI |
Uniform Resource Identifier |
XAdES |
XML Advanced Electronic Signatures [XAdES] |
XML |
Extensible Markup Language [XML] |
XMLDSig |
XML Digital Signature [xmldsig] |
XPath |
The XML Path Language [XPath 2.0] |
XSD | |
XSLT |
Extensible Stylesheet Language Transformations (a transformation language) [XSLT] [XSLT 2.0] |
[BD-NDR] Business Document Naming and Design Rules Version 1.0. Edited by Tim McGrath, Andy Schoka and G. Ken Holman. 14 July 2016. OASIS Committee Specification 01. http://docs.oasis-open.org/ubl/Business-Document-NDR/v1.0/cs01/Business-Document-NDR-v1.0-cs01.html. Latest version: http://docs.oasis-open.org/ubl/Business-Document-NDR/v1.0/Business-Document-NDR-v1.0.html.
[BOV-FSV] ISO/IEC 15944-20 Information technology - Business operational view - Linking business operational view to functional service view
[CPFRoverview] CPFR: An Overview, 18 May 2004
[Customization] OASIS Committee Specification 01, UBL 2 Guidelines for Customization, First Edition, 25 December 2009
[CVA] OASIS Context/value association using Genericode 1.0. 15 April 2010. Committee Specification 01 http://docs.oasis-open.org/codelist/ContextValueAssociation/doc/context-value-association.html.
[genericode] OASIS Code List Representation (Genericode) Version 1.0. 28 December 2007. Committee Specification 01. http://docs.oasis-open.org/codelist/approved/genericode/oasis-code-list-representation-genericode.html.
[Governance] UBL Maintenance Governance Procedures Version 2.2. Edited by Ole Madsen, Tim McGrath and G. Ken Holman. 04 March 2015. OASIS Committee Note 01. http://docs.oasis-open.org/ubl/UBL-Governance/v1.0/cn01/UBL-Governance-v1.0-cn01.html. Latest version: http://docs.oasis-open.org/ubl/UBL-Governance/v1.0/UBL-Governance-v1.0.html.
[RELAX NG] ISO/IEC 19757-2, Information technology — Document Schema Definition Language (DSDL) — Part 2: Regular-grammar-based validation — RELAX NG , Information technology — Document Schema Definition Language (DSDL) — Part 2: Regular-grammar-based validation — RELAX NG AMENDMENT 1: Compact Syntax
[UBL-NDR] UBL Naming and Design Rules Version 3.0. Edited by G. Ken Holman. 20 July 2016. OASIS Committee Note 01. http://docs.oasis-open.org/ubl/UBL-NDR/v3.0/cn01/UBL-NDR-v3.0-cn01.html. Latest version: http://docs.oasis-open.org/ubl/UBL-NDR/v3.0/UBL-NDR-v3.0.html.
[XML C14N] John Boyer, Canonical XML Version 1.0, 15 March 2001.
[XPath 2.0] Anders Berglund, et al., XML Path Language (XPath) Version 2.0, 23 January 2007.
[XPointer] Steven DeRose, et al., XML Pointer Language (XPointer) Version 1.0 Working Draft, 16 August 2002.
[XSLT 2.0] Michael Kay, XSL Transformations (XSLT) Version 2.0, 2007-01-23.
The processes described in this section, and the business rules associated with them, define a context for the use of UBL 2.2 business documents. They are normative insofar as they provide semantics for the UBL document schemas, but they should not be construed as limiting the application of those schemas.
UBL 2.2 extends the pre-award tendering processes, adds a new transportation document for the weight statement, and adds new documents for a business directory and agreements. UBL 2.1 extended the generalized supply chain processes of UBL 2.0 (including the commercial collaborations of international trade) to include support for collaborative planning, forecasting, and replenishment; vendor managed inventory; utility billing; tendering; and intermodal freight management.
The document types included in UBL 2.2 are listed in Section 3, “UBL 2.2 Schemas”. It is important to note that, as with previous UBL releases, the UBL 2.2 library is designed to support the construction of a wide variety of document types beyond those provided in the 2.2 package. It is expected that implementers will develop their own customized document types and components and that more UBL document types will be added as the library evolves.
For guidance in customizing UBL document types, see the UBL Guidelines for Customization [Customization].
For guidance in submitting recommended additions to and new UBL document types, see the UBL Maintenance Governance Procedures [Governance].
This section describes some of the requirements and general business rules that are assumed for collaborations and document exchanges using UBL 2.2.
All information items in a UBL document are specified by the sender either as they are valued or as they are determined by some manner of a calculation model. For examples, an element may contain a fixed value, such as a name, or may contain a calculated value, such as one that is derived as the sum of other elements’ values. The way a value is established or perhaps based upon a calculation model may or may not be documented by the sender. This imposes obligations on the sender when creating the UBL.
All fixed and calculated values must be manifest in the UBL instance. The receiver cannot presume to know that the sender has omitted an absent value as an assumption or as an indication of any kind that is pertinent to how the information is processed. Moreover, the sender cannot rely on the receiver deriving absent values from received values. The onus is on the sender to include all information, such as all pertinent indications and all relevant sums or calculations. The receiver need not make any assumptions nor perform any computations whatsoever when dealing with the sender’s information.
An example receiver application is a print facility that can print any instance of a given UBL document type without having to perform any calculations nor need even know the underlying calculation model.
An item may be a product (goods) or a service
Items may have multiple classifications
A contract may influence prices of items
An item may be part of another item
An item may have a price per unit and an order unit
An item may reference pictures and documents
An item may have a validity period
An item may refer to other relevant or necessary items
For a discussion of the difference between item and line item see Section 2.2.11, “Item vs. Line Item”.
One of the following identifiers may be used to identify each Item (for example, a product):
Buyer’s Item Identification, or
Seller’s Item Identification, or
Manufacturer’s Item Identification, or
Catalogue Item Identification, or
Item Identification according to a system promulgated by a standards body, industry group, or community of use.
The Item may be further distinguished by the specification of Measurement(s) or Physical Attribute(s). This enables specification of the following kinds of item:
Item Requiring Description
This is an item that is not identified by an unambiguous machine-processable identifier and requires additional descriptive information to precisely identify it.
Customer Defined Item
This is an item that the customer describes according to his need, and in the specification of which the customer may make some reference to comparable “standard” items.
Item Requiring Measurements
This is an item for which it is necessary to specify one or more measurements as part of the descriptive specification of the item.
Certain Items may be identified and ordered as individual, unique objects—for example, a specific car rather than a make and model of a car. This form of identification may also be needed for product tracing (e.g., perishable goods) or because of the nature of the commodity (e.g., used, collectible, specialized, or rare).
In data modeling terms, an Item Instance is an extension of an Item.
For any given Item, price ranges by amount, quantity, location, etc., are specified by the Seller during the sourcing stage. They are not repeated back to the Seller during Ordering; only the active price is specified.
In some cases, the Buyer may not know the Item Price, in which case it is not specified. This makes a detailed response from the Seller necessary; see Section 2.3.3.4.4, “Order Response”.
Although ordered items may include Hazardous items, it is not necessary to specify information related to Hazardous status at the order stage. The Buyer may not be aware of the nature of the Item. Indication of the Hazardous nature of the Item, and any relevant information, would be indicated in the Despatch Advice and Transportation documents.
In UBL, a party is defined as an individual, a group, or a body having a role in a business function. Dependent on the business process, a Party may play various roles in the document exchange. For a list of UBL parties and their roles, see Section 2.4, “Party Roles”.
Some textual components, such as Notes and Description, may be specified in several languages. Each should be a separate occurrence of the component, using the language attribute to define its presentation. However, multiple occurrences of the same textual components should not be in the same language.
UBL does not provide documents for tax reporting purposes. Instead, it provides structures to support the information on which taxes are based. These aim to be generic and not based on any specific tax regime.
Many of the UBL document types employ the concept of a “line” inherited
from traditional paper documents such as purchase orders and invoices. As in these older
realizations, a “line” is a substantial data object with a number of
sub-fields, typically including a short description, quantity, unit name, unit price,
extension, and so on. Often in UBL these data structures include an element named
Item
that describes more fully the item of sale being ordered,
invoiced, shipped, etc. Item
in the line context always refers to the
generic item of sale, not a unique, trackable, individual instance of such an item.
In the case of line structures such as InvoiceLine
and
TenderLine
, the relationship between the line and the
Item
it contains is unproblematic, but a person unfamiliar with
traditional usage may easily be confused by the line element called
LineItem
. In traditional business processes, “line item”
is a common name for the entire line structure in a purchase order or invoice, not just the item of sale contained in the line. Thus, despite
the name, a LineItem
is not an Item
but rather a
complex data structure that contains an
Item
along with quantity, price, and so on.
References to “shipment” and “consignment” appear in a number of places in the UBL data model relating to the transport of goods. For IT specialists unfamiliar with the way these terms are used in international trade, the structural relationships between the two can be puzzling. For example, a close look at the data model shows that shipments can comprise multiple consignments and consignments can comprise multiple shipments. This is not a design flaw but rather a reflection of the possible real-world relationships between the two concepts.
Shipment and consignment actually refer to two different ways of looking at the same (possibly very complex) situation. From the physical or logistical point of view, a consignment is the transportation of an identifiable collection of goods items from one party (the consignor) to another (the consignee) via one or more modes of transport. From the contractual or logical point of view, a shipment is the contractual arrangement whereby an identifiable collection of goods items is to be transported from one party (the shipper) to another party (the recipient). In UBL, the party originating the shipment is usually a supplier, and the party receiving the shipment is usually a buyer.
In the simplest fulfilment scenario, these distinctions are almost invisible; see Figure 1, “Simple Fulfilment” below (used, like the subsequent three, by permission of Document Engineering Services). In this case, the supplier of the contracted shipment is the consignor of the physical goods, and the buyer is the consignee.
Often, however, a single contractual shipment is split up into separate physical consignments that may be received on separate schedules, as shown in Figure 2, “Split Fulfilment”. The shipper may use multiple carriers, or the shipment may be so large that it must be transported in multiple vessels, becoming in effect multiple consignments. It is therefore often necessary for the UBL description of a shipment to contain descriptions of the consignments into which the goods have been divided.
So far, the shipper (here a supplier) remains the only consignor and the recipient (here the buyer) the only consignee. But sometimes the division of a shipment into consignments takes place “behind the scenes” through the involvement of a freight forwarder, who becomes both a second consignee and a second consignor (Figure 3, “Intermediary Fulfilment”). The “shipment” in this case is the entire end-to-end organization of the transport of goods on behalf of the shipper.
Another layer of complexity is introduced when pieces of different, possibly unrelated shipments are consolidated into a single consignment to make the physical process more efficient (to share space in the same shipping container, for example, which optimizes transport by ensuring that the container is fully loaded and also provides a more competitive tariff). In Figure 4, “Consolidated Fulfilment”, goods from two completely unrelated business transactions between two buyers and their suppliers — two different shipments — are consolidated by a freight forwarder into a single consignment for part of their journey and then separated again by another freight forwarder farther on. This requires the UBL description of the consignment to contain descriptions of the shipments participating in the consolidation. Note that the transaction between the two freight forwarders is itself a shipment (a consolidated shipment), and its data structure must be able to describe the two shipments it is covering (Supplier A to Buyer A and Supplier B to Buyer B) so that the receiving forwarder knows how to de-consolidate the consignment.
Note that the word “consignment” in the context of transportation has a meaning different from that of “consignment” in sales and vendor-managed inventory (Section 2.3.3.5, “Vendor Managed Inventory”).
The terms “transport” and “transportation” both appear many times in the UBL data model. There is no semantic difference between these terms as used in UBL; in the context of freight management, they mean exactly the same thing: the conveyance of goods or persons.
“Transportation” is the oldest of the two forms, the noun “transportation” first appearing in written English about 70 years earlier than the noun “transport”. UBL 2.0 adopted “transportation” as the preferred form in terms such as “transportation service” and “transportation status”, but in the process of developing UBL, which features greatly expanded data representation capabilities for multimodal freight management, it became clear that “transport” is the form to be preferred, both because it is shorter and because it is the more commonly used of the two in international contexts. The decision to adopt “transport” for new usages while preserving backward compatibility with UBL 2.0 by retaining “transportation” in data items from the earlier release has resulted in the mixed terminology seen here.
There are two methods of capturing Transport Event information: at the Consignment level and at the Shipment Stage level.
A Consignment may pass through several shipment stages in its lifetime, for maritime shipments this would typically be pre-carriage, main carriage and on-carriage stages. Each of these stages has events such as pickups and deliveries. In these scenarios the Shipment Stage is the appropriate structure for containing the Transport Event information.
But it is also possible for the information to be a snapshot of the status of a Consignment (for example where the consignee and consignor are not aware of these stages). This view of the Consignment is as one set of Transport Events. In these scenarios the Consignment is the appropriate structure for holding the Transport Event information.
UBL has been enhanced to support the financial information required for downstream processing of Invoices within financial services. By aligning information models business vocabularies such as UBL for eBusiness and ISO 20022 for eFinance enable Straight Through Processing (STP) and paperless trading along the entire Financial Supply Chain. For example, the UBL Invoice and Remittance Advice can be used together with financial messages to ensure end-to-end transport of reconciliation identifiers (invoicing party references). In particular, UBL provides a solution for advanced external remittance, where the UBL Remittance Advice is used to transmit the details of complex remittance information associated with the payment initiation process (see ISO 20022 guides for details).
UBL is also designed to support basic trade financing practices (invoice financing, factoring, pre-shipment/order financing, Letter of Credit, etc.).
The structure and semantics of UBL with respect to taxation information have been aligned with the OASIS Indirect Tax Reference Model Version 2.0 produced by the OASIS Tax XML TC supported by the OECD. The purpose of this reference model is to present a model of the tax related information contained within the messages exchanged between the participants involved in a business transaction, the primary purpose of which is not tax-related, but which may be subject to the imposition of an indirect tax. This model is intended to serve as a reference for any effort to analyze the related messages (documents) of an implementation to verify that the indirect tax implications are adequately addressed, and as input to any effort to define message-oriented specifications involving indirect taxation. It is based on a three party scenario, where parties in a commercial business process can conduct their transactions and provide taxation, customs or independently auditable information when required.
Following from UBL 2.1, the UBL 2.2 library and documents support an increased range of different business processes. See Section B.5, “Minor Revision: UBL 2.2” for a detailed summary of the changes to the library and documents. The UBL business processes now supported can be categorized as follows (those with document type additions in 2.2 are shown in italicized boldface):
Section 2.3.2.1, “Collaborative Planning, Forecasting, and Replenishment”
Section 2.3.2.1.1, “Collaborative Planning, Forecasting, and Replenishment Introduction”
Section 2.3.2.1.2, “Collaboration Agreement and Joint Business Planning”
Section 2.3.2.1.3, “Sales Forecast Generation and Exception Handling”
Section 2.3.2.1.4, “Order Forecast Generation and Exception Handling”
Section 2.3.5.6, “Intermodal Freight Management”
Section 2.3.5.6.1, “Intermodal Freight Management Introduction”
Section 2.3.5.6.2, “Announcing Intermodal Transport Services”
Section 2.3.5.6.3, “Establishing a Transport Execution Plan”
Section 2.3.5.6.4, “Providing an Itinerary for a Transport Service”
Section 2.3.5.6.5, “Reporting Transport Means Progress Status”
The VICS Collaborative Planning, Forecasting, and Replenishment (CPFR®) guidelines [CPFR] formalize the processes by which two trading partners agree upon a joint plan to forecast and monitor sales through replenishment and to recognize and respond to any exceptions.
In the UBL context of use, these CPFR processes between the retailer and the manufacturer have been extended to cover the planning process between other parties such as the manufacturer and the supplier. These binary collaboration definitions are the template guidelines for implementers to build their own collaboration process based on their supply chain topology and requirements.
As shown in Figure 2-2 of [CPFR], the seller and the buyer engage in three main activities in order to improve the overall performance of the supply chain:
Planning establishes the ground rules for the collaborative relationship. Trading partners exchange information about their corporate strategies and business plans in order to collaborate in the development of a Joint Business Plan. The Joint Business Plan identifies the significant events that affect supply and demand in the planning period, such as promotions, inventory policy changes, store openings/closings, and product introductions.
The Forecasting phase involves the development of a shared plan based on consumer demand. Estimation of consumer demand at the point of sale is called sales forecasting, and future product ordering based on the sales forecast is referred to as order forecast.
The Replenishment phase involves order generation, which transitions forecasts to firm demand, and order fulfilment, the process of producing, shipping, delivering, and stocking products for consumer purchase. Note: This phase may be implemented using other UBL processes.
A fourth collaborative activity, Analysis, involves monitoring the execution of activities for exceptions that are identified during the strategy and planning phase. Calculation of key performance metrics and plan adjustments for improving results also take place in Analysis. This activity is represented in the CPFR diagram by the arrows labeled “Exception Triggers” and the process called “Resolve/Collaborate on Exception Items” in the Forecasting phase.
While these collaboration activities are presented in logical order, most companies are involved in all of them at any moment in time. There is no predefined sequence of steps. Execution issues can impact strategy, and analysis can lead to adjustments in forecasts.
The Collaboration Arrangement is the preparatory step that defines the scope of the project, assigns roles, establishes procedures for data interchange, and issues identification and resolution. The following actions are performed through meetings and agreements:
Receive and review background information from the sales organization or buyers
Identify the product categories that should be included in the initial scope
Define Collaboration Objectives
Define specific metrics that reflect the objectives
Determine the Event collaboration cycle
Determine the times of the review meetings to discuss the results
Document the data sources that are essential for a successful event collaboration process, and
Document additional information that can be used in the event analysis.
The first step of the CPFR Process continues with the exchange of messages containing purchase conditions. (UBL does not standardize the format of such messages.) Afterwards, for determining the exception criteria that should be monitored and handled during the execution, Exception Criteria messages are exchanged. Exchange of revised Exception Criteria messages continues until the criteria are accepted by both sides.
In CPFR Step 2 (the Joint Business Planning phase) there are two messages that should be exchanged and agreed upon: Retail Event and Trade Item Location Profile. Revisions are exchanged until an agreement is achieved.
CPFR Step 2 helps the buyer and seller agree to the event details and calendar that meet their joint business and collaboration objectives. The objective of the event calendar is to ensure that events are planned to achieve the optimal results and to enable both parties to plan the execution of the event more accurately, from the preparation of advertising and displays to the production and delivery of the promotional stock.
In CPFR Step 3, the Sales Forecast is generated. Following Option A, Conventional Order Management, from the CPFR implementation scenarios (see [CPFRoverview], Table 3), the responsible partner for the generation of Sales Forecast is the Seller. Having Event Calendar information and the Delivery Plan already in their system, there are two more kinds of information that the Seller needs for an effective Sales Forecast: POS Data and DC Data. As shown in Figure 8, “CPFR Steps 3, 4, and 5” and Figure 9, “Create Sales Forecast”, both of these pieces of information are sent within a Product Activity message. This time there is no revision of the messages because these messages contain statistical and historical information collected previously by the Buyer.
Based on the event details (dates, products, tactics, etc.) and using the available data source(s), a volume estimate/forecast is created for each product/store combination included in the scope of the event by the Seller. During the calculation, sales forecasting algorithms make use of the coefficients for causal factors based on the event history. Once the Sales Forecast suggestion is generated and sent to the Buyer, the Buyer revises it and might recommend some changes on the Forecast. The Forecast Revision message exchange continues until the forecast is agreed by both sides.
In many cases some time may elapse between Sales Forecast Generation and Order Generation. During this period, both sides observe changes to the conditions. If one of the partners detects an exception invalidating the exception criteria defined in CPFR Step 1, it sends an Exception Notification message to the other party. Exceptional circumstances that may be communicated between trading partners include deviations between planned impacts (either between buyer and seller, or between subsequent generations of planned impacts from the same trading partner), as well as deviations between planned and actual impacts. It should be noted that both sides might detect an exception, and therefore both sides should be capable of sending and receiving exceptions. Of course, for specific implementations if the collaborating parties want to change this behaviour, they can customize the process so that one partner will be responsible for the generation of the Exception Notifications.
CPFR Step 4 is solely composed of the exception generation and receiving activity. CPFR Step 5, on the other hand, is the resolution of the Exceptions.
If there is no Exception Notification Message within the defined period, the process continues with Order Forecast Generation (CPFR Step 6).
In the supply chain process, it is important for sales forecasts that are created to be converted into the shipment (order) forecasts that can then be used in the production planning processes at the manufacturing locations and be incorporated into the ordering processes at the retailer. As shown in Figure 11, “CPFR Steps 6, 7, 8 and 9”, the responsibility for creating Order Forecast belongs to the Seller per Option A of the CPFR implementation scenarios (see [CPFRoverview], Table 3). Sales forecasts can be transformed into order forecasts by incorporating inventory status information, possible retail event plans, and current point of sale data. Therefore, Buyer sends the updated versions of the Retail Event, Inventory Status, and POS Data to the Seller.
After the Seller creates the Order Forecast using the obtained data, it sends the forecast to the Buyer. The Buyer checks the order forecast and sends back a revision document which includes update requests if necessary. The exchange of Order Forecast Revisions continues until there are no further update requests and the Order Forecast is agreed by both sides. Document types used in this process are Retail Event, Product Activity, Forecast, and Forecast Revision.
After the Order Forecast is frozen, the process continues with the exception detection activity (CPFR Step 7). The exception detection process that follows Order Forecast is similar to process described earlier for exception detection following Sales Forecast (see Section 2.3.2.1.3, “Sales Forecast Generation and Exception Handling”). The only difference between the Order Forecast and Sales Forecast exceptions is the content of the exceptions.
CPFR Step 8, Order Forecast Exception Resolution activity, is handled similarly to Sales Forecast Exception Resolution.
If there is no exception during a period of time, the process continues with the Order Generation Step.
From the technical point of view, the exception monitoring and its resolution are exactly same as in the case of Order Forecast Exception Handling and Sales Forecast Exception Handling. The difference is in the content of the exceptions. The actual events and orders are compared to the Forecasted Sales and Forecasted Orders. When there is a situation violating the normal exception criteria, one of the sides might generate an exception notification. Besides comparison of forecasts, other information gathered during the execution is observed (e.g., event dates, POS data, etc.). The resolution of the exceptions is the same as the process carried out for Sales Forecast Exception resolution.
Tendering is the case where a contracting authority (the Originator) initiates a procurement project to buy goods, services, or works during a specified period, as shown in the following diagram.
A similar but less formally defined process than tendering is quotation (see Section 2.3.3.3, “Quotation”).
The Tendering process optionally begins with publication of a Prior Information Notice prepared by a Contracting Authority to declare the intention to buy goods, services, or works during a specified period. The purpose of this step (if implemented) is to reduce preparation time when an actual Contract Notice is published (see Section 2.3.3.1.3, “Contract Information Notification”).
The process of Notification includes the publication by the Contracting Authority of a Contract Notice to announce the project to buy goods, services, or works. The details shown here are specific to the EU, which requires contracts over a certain amount (Harmonized contracts) to be published in the Official Journal of the EU. Other tendering contexts will differ in their publication requirements.
In some procedures, the Contracting Authority invites economic operators to participate in a contest by sending them an invitation to tender using a Call For Tenders to define the procurement project to buy goods, services, or works during a specified period. The Call for Tenders may be sent jointly with an unstructured letter of invitation to tender.
An economic operator expresses interest in a tendering process by submitting an Expression of Interest. The Contracting Authority replies with an Expression of Interest Conformation to confirm the economic operator will receive any modification of the terms and documents related with that tendering process.
An economic operator requests to be unsubscribed from a tendering process by submitting an Unsubscribe From Procedure. The Contracting Authority replies with an Unsubscribe From Procedure Conformation to confirm the economic operator will be removed from the list of interested economic operators and will not receive any modification of the terms and documents related with that tendering process.
The economic operator sends a Tenderer Qualification to the Contracting Authority to define its own situation or status relating to the requirements of the Contracting Authority for a specific tendering process. The Contracting Authority uses the Tenderer Qualification Response to notify the Tenderer of its admission to or exclusion from the tendering process.
A contracting authority makes a description of the required qualification application request (In Europe: ESPD Request) to an Economic Operator (the tenderer). The Economic Operator (the tenderer) makes a description of the required application qualification response (In Europe: ESPD Response) to a Contracting Authority in order to become eligible to participate in the tendering process.
A requester sends a question to a responder using an Enquiry document and the responder replies with a Response document.
A Tenderer submits one or more Tender documents that offer a tender to the Contracting Authority for bid. The Contracting Authority responds with a Tender Receipt to notify the reception of the tender for a tendering process. The date and time of the Tender Receipt are significant, because tendering procedures usually have strict deadlines for tender presentation.
An economic operator asks about the details and the status of a tendering procedure. In reply to this enquiry, the contracting authority sends information to the economic operator describing the status of a tendering process.
An economic operator requests to withdraw a submitted tender to the contracting authority. Based on that document, the contracting authority will remove the tender from the tendering system.
The awarding of tenders takes place in three phases.
First, the Contracting Authority notifies each tenderer of its success or failure in winning the contract, using the Awarded Notification document to communicate the contract award to the winning tenderer or the Unawarded Notification document to communicate that the contract has been awarded to another tenderer.
Second, the Contracting Authority creates a Contract Award Notice to announce the awarding of a procurement project.
Finally, the Tenderer sends a Guarantee Certificate to notify the deposit of a guarantee.
A Catalogue is a document with structured item information that is used for commercial purposes over a period of time. It can be established, updated and deleted with different types of catalogue transactions. Different meanings are given to the concept of catalogue depending on the user’s perspective. Thus, it can also be understood as:
a tender: an electronic document which contains all references of items, services and prices available, proposed by the Catalogue Provider.
a set of needs: list of needs of products or services that the Customer Party may purchase or contract.
a requirement: list of selected items and corresponding prices supplied to a Catalogue Provider to be bought.
Document types associated with Catalogue processes are Catalogue Request, Application Response, Catalogue Item Specification Update, Catalogue Pricing Update, and Catalogue Deletion.
Any conditions specified in the contract shall overrule those stated in the common Catalogue.
A Catalogue exchange shall be between one Provider and one Receiver Party.
A classification system may have its own set of properties.
A classification scheme shall have metadata.
A Catalogue may have a validity period.
A Catalogue should include item classifications.
Classification schemes should include standard and specific properties.
A Catalogue may refer to the lot (sub-section) of a contract.
A Catalogue may explicitly specify the framework contract reference.
A Catalogue may refer to a DPS contract number.
When a Catalogue item is updated, the item shall be replaced in the Catalogue.
When a Catalogue item is updated, historical information about replaced or updated items must be available to reconcile with outstanding transactions.
Prices may be updated independently of other Catalogue information.
Catalogue distribution may be Provider or Receiver Party initiated.
If a Receiver initiates a request for a Catalogue, they may request an entire Catalogue or only updates to either pricing or item specification details.
Whether Receiver Party initiated or not, the decision to issue a new Catalogue or update an existing one shall be at the discretion of the Provider Party.
If an updated Catalogue is issued, then an action code shall define the status of the items in the Catalogue.
Catalogue provision is the case where a Provider sends information regarding items available for purchase to a Receiver. This may be on request or unsolicited. Because they are only potential purchasers, a Receiver may never become a Customer Party.
The process of creating a Catalogue is shown in the following diagram. The UBL document types involved are Catalogue, Catalogue Request, and Application Response.
The process of updating a Catalogue Item specification using Catalogue Item Specification Update is shown in the following diagram. The Catalogue Request and Application Response documents also participate.
The process of updating Catalogue pricing is shown in the following diagram. The UBL document types involved are Catalogue, Catalogue Request, Catalogue Pricing Update, and Application Response.
Deletion of a Catalogue using Catalogue Deletion and Application Response is shown in the following diagram.
Punch-out is a technological innovation whereby an Originator is able to directly access a Seller’s catalogue application from within the Seller’s own procurement application.
The Originators leave (“punch out” from) their system and interact with the Seller’s catalogue to locate and order products, while the Seller’s procurement application transparently gathers pertinent information.
While conceptually the punch-out request is a form of Request For Quotation (see Section 2.3.3.3, “Quotation”), the exchange transaction is tightly coupled to the specific catalogue application and is considered outside the scope of UBL; thus, the only UBL document type involved in this process is Quotation.
Less formally defined than a tender (see Section 2.3.3.1, “Tendering (pre-award)”), a quotation process is the case where the Originator asks for a Quotation via a Request For Quotation, as shown in the following diagram.
Ordering is the collaboration that creates a contractual obligation between the Seller Supplier Party and the Buyer Customer Party. Document types in these processes are Order, Order Response, Order Response Simple, Order Change, and Order Cancellation.
The Order may specify allowance and charge instructions (e.g., freight, documentation, etc.) that identify the type of charge and who pays which charges. The Order may be placed “on account” against a trading credit account held by the Seller, or against a credit/debit card account, or against a direct debit agreement. The Order allows for an overall currency defining a default for all pricing and also a specific currency to be used for Invoicing. Within an Order, additional currencies may be specified both for individual item pricing and for any allowances or charges.
Trade discount may be specified at the Order level. The Buyer may not know the trade discount, in which case it is not specified. This makes a detailed response from the Seller necessary; see Section 2.3.3.4.4, “Order Response”.
The Order provides for multiple Order Lines.
The Order may specify delivery terms, while the Order Line may provide instructions for delivery.
The Buyer may indicate potential acceptable alternatives.
The Order Response Simple is the means by which the Seller confirms receipt of the Order from the Buyer, indicating either commitment to fulfil without change or that the Order has been rejected.
Proposed changes to an Order by the Seller are accomplished through the full Order Response document.
The Order Response proposes to replace the original Order. It reflects the entire new state of an order transaction.
It also is the means by which the Seller confirms or supplies Order-related details to the Buyer that were not available to, or specified by, the Buyer at the time of ordering. These may include:
Delivery date, offered by the Seller if not specifically requested by the Buyer
Prices
Discounts
Charges
Item Classification codes
The Seller may advise on replacements, substitutes, or other necessary changes using the Order Response.
The Buyer may change an established Order in two ways, subject to the legal contract or trading partner agreement: first, by sending an Order Change, or second, by sending an Order Cancellation (see Section 2.3.3.4.6, “Order Cancellation”) followed by a new, complete replacement Order.
An Order Change reflects the entire current state of an order transaction.
Buyers may initiate a change to a previously accepted order for various reasons, such as changing ordered items, quantity, delivery date, ship-to address, etc. Suppliers may accept or reject the Order Change using either Order Response or Order Response Simple.
At any point in the process, a Buyer may cancel an established order transaction using the Order Cancellation document. Legal contracts, trading partner agreements, and business rules will determine the point at which an Order Cancellation will be ignored (e.g., at the point of manufacture or the initiation of the delivery process). Given the agreements and rules, an Order Cancellation may or may not be an automated business transaction. The terms and conditions of contract formation for business commitments will dictate which, if any, of these restrictions or guidelines will apply.
Vendor Managed Inventory (VMI) is a family of business processes in which the Retailer Customer Party for an item provides certain information to the Seller Supplier Party, and the Seller Supplier Party takes full responsibility for maintaining an agreed-upon inventory of the item, usually at the Retailer Customer Party’s point of sale. A third party logistics provider can also be involved to make sure that the Retailer Customer Party has the required level of inventory by adjusting the demand and supply gaps.
UBL supports three common models of VMI:
Basic VMI
Cyclic Replenishment Program (CRP)
Replenishment on Customer Demand
These processes are described in more detail below. It should be noted that the particular semantics used here come from a large-scale UBL application developed for the Italian textile and clothing industry by ENEA, the Italian National Agency for New Technologies, Energy, and Sustainable Economic Development (see [eBiz-TCF]). These models are applicable to the implementation of vendor-managed relationships in a broad range of retail sectors, but for the sake of simplicity, and in keeping with the model application, the two principal parties in the VMI relationship (the Seller Supplier Party and the Retailer Customer Party) are referred to as “producer” and “retailer” in the descriptions that follow; more generically, they are vendor and customer.
In the classic VMI scenario, a shop-within-a-shop area or an entire store is managed completely by the producer. The logistic concept of VMI can be combined with consignment/concession as well as with charge-on-delivery as the financial model. Mostly it is combined with consignment.
At the beginning of the cooperation, the area is stocked by the producer. The retailer receives item and delivery information and reports back the goods actually received. UBL document types used here are Catalogue, Despatch Advice, and Receipt Advice.
The sales and inventory movement information is transferred from the retailer to the producer using Product Activity.
Based on sales and inventory movement, the producer periodically makes a new delivery of goods accompanied by a Despatch Advice. If the delivery contains an item not previously stocked, an updated Catalogue is also sent so that the retailer can add the item to its product database. Upon delivery of the goods, the retailer reports back the items received using a Receipt Advice.
A UBL Invoice is sent either on a delivery or a sales basis. In a charge-on-delivery model, the data for the invoice is prepared from the delivery, and in a consignment/concession model from the sales reports.
If sales do not meet expectations, items are reallocated by the producer. Because the producer cannot request a retailer to send the products to a competitor, the producer requests a return and handles the goods afterwards by itself. Document types used here are Instruction For Returns, Despatch Advice, and Receipt Advice.
In the event of a price change, an updated price list (in the form of a new Catalogue containing the change) is sent from producer to retailer.
A variant of VMI is the Cyclic Replenishment Program (CRP). In this process, the producer establishes a catalogue of NOS (Never Out of Stock) or seasonal NOS items, and the retailer chooses items for cyclic (weekly) replenishment. The logistic scenario can be combined with the charge-on-delivery as well as with a consignment/concession model. At the end of every sales period, a report of sales and inventory movement at all retail locations is sent to the producer.
CRP differs from the third VMI variant, Replenishment on Customer Demand (below), in that the producer cannot change the terms of the order.
The producer publishes the Catalogue of its NOS and seasonal NOS items to the retailer.
At the beginning of the cooperative relationship—or the beginning of a season, if seasonal NOS products are the focus—the retailer orders its base stock, and the products are delivered. Order, Despatch Advice, and Receipt Advice are used in this process.
Each period (every week), the retailer’s system calculates the quantities needed for replenishment of the product area. From the result, an order is sent, and the producer responds with a direct delivery within 48 hours.
The replenishment process uses the same documents in the same order as the Initial Stocking process, so the duplicate diagram is omitted here; see Figure 45, “Initial Stocking of the Area by Retailer”. It must be remembered, however, that the two processes are taking place at different points in time, so their pre and post conditions will be different.
At the end of each sales day, a report of all sales and inventory movement at all retail locations is sent from the retailer to the producer using Product Activity.
A UBL Invoice is sent either on a delivery or a sales basis.
Information about the actual stock is synchronised periodically (for example, every one to three months) using Inventory Report. This is combined at least once a year with a physical inventory.
The retailer sends an inventory report containing the information about the quantities currently in stock.
In the event of a change, either inside an item belonging to the CRP Catalogue or the relationship of an item to the CRP Catalogue, information about the change is sent to the retailer by sending an updated Catalogue document. Item change is indicated by an optional Action Code field in each changed Catalogue Line.
Another variant of VMI is Replenishment On Customer Demand. In this process, the producer selects a subset of its products for a specific retailer and sends out the related article catalogue. Then the producer periodically sends information about the availability of items so that the retailer can form the best ordering plan. The replenishment periodically happens on retailer (customer) demand, and unlike the case with CRP (above), the producer is allowed to propose changes to the orders. Also, because of the requirement to update item availability information, an additional document type (Stock Availability Report) is added to the process.
The processes of sales and inventory reporting, invoicing, stock synchronization, and changing the catalogue are identical to the same processes in CRP. As with CRP, a report of sales and inventory movement at all retail locations is sent to the producer at the end of every sales period. Invoicing and logistics are normally charge-on-delivery but can also be based on a consignment/concession model.
The producer publishes a Catalogue of its products to the retailer. The catalogue can include basic articles, never-out-of-stock (NOS) articles, seasonal articles, short-season-collection articles, or seasonal NOS articles.
The producer sends out information about availability of goods (quantities on hand, quantities incoming, articles out of stock) using a Stock Availability Report.
At the beginning of the business cooperation—or perhaps at the beginning of a season, if seasonal NOS (never out of stock) products are the focus—the retailer orders its base stock and the products are delivered. Note that the producer is allowed to propose changes to the order (compare this figure with Figure 45, “Initial Stocking of the Area by Retailer”). Document types used in this process include Order, Order Change, Despatch Advice, and Receipt Advice.
Periodically, the retailer’s system calculates the quantities needed for replenishment of the area. From the result, an order is sent, and the producer responds with a direct delivery within 48 hours.
The replenishment process uses the same documents in the same order as the Initial Stocking process, so the duplicate diagram is omitted here; see Section 2.3.3.5.4.4, “Initial Stocking of the Area by Producer and Retailer”. It must be remembered, however, that the two processes are taking place at different points in time, so their pre and post conditions will be different.
Sales and inventory movement information is transferred daily from the retailer to the producer.
The process for sales and inventory reporting is the same as in CRP (see Figure 46, “Report of Sales and Inventory Movements”).
An invoice is sent either on a delivery or a sales basis.
The invoice process for Replenishment On Customer Demand is the same as for CRP (see Figure 47, “Invoicing for Cyclic Replenishment Program”).
Information about the actual stock is synchronised periodically (for example, every one to three months). Synchronization occurs at least once a year together with a physical inventory.
The stock synchronization process for Replenishment On Customer Demand is the same as in CRP (see Figure 48, “Synchronizing Stock Information”).
In the event of a change, either inside an item belonging to the Catalogue or the relationship of an item to the Catalogue, information about the change is sent to the retailer by sending an updated Catalogue document. Item change is indicated by an optional Action Code field in each changed Catalogue Line.
The process for changing the catalogue in Replenishment On Customer Demand is the same as in CRP (see Figure 49, “Changes to the Item Catalogue”).
The make processes include, production activities, packaging, staging product, and releasing. It also includes managing the production network, equipment and facilities, and transportation.
As these are traditionally internal organizational activities they are not included in this release. However we anticipate and welcome submissions from the industry for document types that may be utilized in these processes.
Fulfilment is the collaboration in which the goods or services are transferred from the Despatch Party to the Delivery Party.
Document types in these processes are Despatch Advice, Receipt Advice, Order Cancellation, Order Change, and Fulfilment Cancellation.
In common practice, fulfilment is either supported by a proactive Despatch Advice from the Despatch Party or by a reactive Receipt Advice from the Delivery Party.
If the Customer is not satisfied with the goods or services, they may then cancel or change the order (see Section 2.3.3.4, “Ordering (post-award)”). The Seller may have a fulfilment (or customer) service dealing with anomalies.
Cancellation of a Despatch Advice or Receipt Advice is accomplished using the Fulfilment Cancellation document (see Section 2.3.5.1.4, “Fulfilment Cancellation Business Rules”).
The Despatch Advice is sent by the Despatch Party to the Delivery Party to confirm shipment of items.
The Despatch Advice provides for two situations:
Organization of the delivery set of items by Transport Handling Unit(s) so that the Receiver can check the Transport Handling Unit and then the contained items. Quantities of the same item on the same Order Line may be separated into different Transport Handling Units and hence appear on separate Despatch Lines within a Transport Handling Unit.
Organization of the delivery set of items by Despatch Line, annotated by the Transport Handling Unit in which they are placed, to facilitate checking against the Order. For convenience, any Order Line split over multiple Transport Handling Units will result in a Despatch Line for each Transport Handling Unit they are contained in.
Additionally, in either case, the Despatch Advice may advise:
Full Despatch—advising the Recipient and/or Buyer that all the items on the order will be, or are being, delivered in one complete consignment on a given date.
Partial Despatch—advising the Recipient and/or Buyer that the items on the order will be, or are being, partially delivered in a consignment on a given date.
Despatch Lines of the Despatch Advice need not correspond one-to-one with Order Lines, and are linked by a reference. The information structure of the Despatch Advice may result in multiple Despatch Lines from one Order Line. Equally, partial despatch may result in some Order Lines not being matched by any Line in a Despatch Advice.
Within a Despatch Advice, an Item may also indicate the Country of Origin and the Hazardous nature of the Item.
The Receipt Advice is sent by the Delivery Party to the Despatch Party to confirm receipt of items. It also is capable of reporting shortages or damaged items.
The Receipt Advice provides for two situations. For ease of processing claimed receipt against claimed delivery, it must be organised in the same way as the corresponding Despatch Advice:
Indication of receipt by Transport Handling Unit(s) and contained Receipt Lines one-to-one with the Despatch Advice as detailed by the Seller party, or
Indication of receipt by Receipt Lines annotated by Transport Handling Unit, one-to-one with the Despatch Advice as detailed by the Seller party.
The Receipt Advice allows the Delivery Party to state any shortages from the claimed despatch quantity and to state any quantities rejected for a given reason.
In real life, the sender of a Despatch Advice or Receipt Advice sometimes needs to cancel the document after it has been sent. The Fulfilment Cancellation document is provided for this purpose.
For example, a Despatch Advice may later be cancelled by the Supplier when a problem with shipment prevents the delivery of goods, or the goods to be shipped are not available, or the order is cancelled; in these cases, the customer cancels receipt and adjusts the order accordingly (see Figure 53, “Fulfilment with Despatch Advice”).
Similarly, a Receipt Advice may later be cancelled by the customer (see Figure 54, “Fulfilment with Receipt Advice”) if the customer discovers an error in ordering (failure to follow formal contractual obligations, incorrect product identification, etc.) or a problem with a delivered item (malfunction, missing part, etc.). In this case, the billing and payment process may be put on hold.
Freight management for domestic trade is typically accomplished using Despatch Advice and Receipt Advice (see Section 2.3.5.1, “Logistics”). The additional processes shown in Figure 55, “Initiate Freight Management Process” are engineered to support the ordering and management of logistical services for international trade.
With receipt of an order and acknowledgement by the Supplier Party that the goods are available and ready to be shipped, the Consignor or Consignee initiates the transportation arrangements. This includes booking the consignment with a Transport Service Provider such as the Freight Forwarder or Carrier and advising the Delivery Party of the arrangements as needed.
Document types in these processes are Forwarding Instructions, Packing List, Bill Of Lading, and Waybill. (Regarding the Transportation Status document type, see Section 2.3.5.3, “Freight Status Reporting”).
It should be noted that these processes involve the Consignee and Consignor and do not cover all the logistical processes required to physically move the goods or regulatory notifications such as Customs declarations.
For a discussion of the difference between consignment (consignor to consignee) and shipment (shipper to recipient), see Section 2.2.12, “Shipment vs. Consignment”.
For a discussion of the difference between transport and transportation, see Section 2.2.13, “Transport vs. Transportation”.
Forwarding Instructions are normally used by any party who gives instructions for the transportation services required for a consignment of goods (the Transport Service Buyer) to any party who is contracted to provide the transportation services (called the Transport Service Provider). Forwarding Instructions may also be used by any party who requests a booking of shipment space to be made for the transportation services required for a consignment of goods to any party who will provide the underlying transportation services. The parties who issue this document are commonly referred to as the shipper, consignee, or consignor, while the parties who receive this document are forwarders, carriers, shipping agents, etc.
Forwarding Instructions may also be issued by a freight forwarder or shipping agent in their capacity as a Transport Service Buyer. This document may be used to arrange for the transportation:
Of different types of goods or cargoes
Whether containerized or non-containerized
Through different modes of transport, and
From any origin to any destination.
A Packing List is normally issued by the Consignor. It states the distribution of goods in individual packages.
A Bill Of Lading is a transport document that is the evidence of a contractual agreement between the parties for the transportation service. The document evidences a contract of carriage by sea and the acceptance of responsibility for the goods by the carrier, by which the carrier undertakes to deliver the goods against surrender of the document. It is in common use for ocean or inland waterways modes of transport. The Bill of Lading (B/L) may serve as a document of title. A provision in the document that the goods are to be delivered to the order of a named person, or to order, or to bearer, constitutes such an undertaking.
A Bill of Lading is normally issued by the party who provides the physical transportation services (e.g., the maritime carrier) to the party who gives instructions for the transportation services (shipper, consignor, etc.) as a receipt for the cargo and sometimes of instructions, stating the details of the transportation, charges, and terms and conditions under which the transportation service is provided.
A Bill of Lading may also be issued by the party who acts as an agent for the carrier or other agents to the party who gives instructions for the transportation services (shipper, consignor, etc.) stating the details of the transportation, charges, and terms and conditions under which the transportation service is provided, but who does not provide the physical transportation service. In such case a Bill of Lading is signed “as agent”.
Much of the information contained in the Bill of Lading corresponds to the information on the Forwarding Instructions.
A freight forwarder, who can be either a Transport Service Provider or a Transport Service User according to different circumstances and depending on the contractual interlocutor, can assume responsibility for the shipment with regards to the shipper and issue Bills of Lading as a common carrier, a contractual carrier, or as a Non Vessel Operating Common Carrier (NVOCC). In such case, when the transportation is multimodal, it can provide a multimodal Bill of Lading.
A Waybill is a transport document issued by the party who undertakes to provide transportation services, or undertakes to arrange for their provision, to the party who gives instructions for the transportation services (shipper, consignor, etc.). It states the instructions for the beneficiary and may contain the details of the transportation, charges, and terms and conditions under which the transportation service is provided.
Unlike a Bill Of Lading, a Waybill is not negotiable and cannot be assigned to a third party (endorsement). It may be issued as a cargo receipt and is not required to be surrendered at the destination in order to pick up the cargo. This may simplify the documentation procedures between a Transport Service Buyer and a Transport Service Provider, but using this document in combination with international payments (e.g., documentary credits) is not advisable.
A freight forwarder may decide to issue a waybill to communicate consignment, transport, and conveyance information to third parties, be they shippers, subcontractors, transport operators, or authorities.
A Weight Statement is a transport document verifying the declared true gross mass of a packed container. Working with this knowledge avoids injury, container loss, damage to cargo, etc. Formally verifying the gross mass may be a condition for transport.
Freight Status Reporting is the process by which a Transport Service Provider (such as a Carrier or Freight Forwarder) communicates the status of shipments currently under their management to the Transport Users (such as a Freight Forwarder, Consignee, or Consignor).
A Transportation Status document is provided either through a Transportation Status Request document or through an agreed status reporting procedure.
When a Consignor exports certain goods they may be required to attest to the origin of the goods. A Certificate Of Origin is a document required by regulatory bodies declaring that goods in a particular international shipment are of a certain origin.
It is the responsibility of the Exporter to sign the Certificate of Origin Application document and submit it for authentication to a recognized authority (such as a local chamber of commerce or designated government agency or board). This party becomes the Endorser and will issue the Certificate of Origin document. To do this the Endorser must have access to other documents, such as the commercial Invoice and Bill Of Lading, in order to verify the Exporter’s claims that the goods originated in that country. In effect, the Certificate of Origin document is a dossier describing a set of related documents. After it is issued, the Certificate of Origin is sent to the Importer.
The major applications for Cross Border Regulatory reporting are:
Single Window Systems
Co-ordinated Border Management
Data Re-use
Supply Chain Security
Security Filing
Trade & Transport Data Pipelines
Trade Data Intelligence
Work is currently in progress within the UBL Technical Committee to develop UBL documents that work with the cross border regulatory requirements. These will provide a link between the information contained in commercial business documents and the information required for reporting to customs and other government agencies for the clearance of goods, cargo and means of transport. These UBL documents will complement the WCO Data Model standards.
Intermodal transport implies the use of a combination of transport modes. Any support for the management of such chains has to support the modal change of cargo flows from one mode to another in order to create seamless sequences of transportation legs. Quite often the end legs are carried by road, but there are instances of short sea shipping, inland waterways, and rail being used as end legs.
The Intermodal Freight Management process differs from conventional international freight management in that it may involve multiple different transport modes. The focus is the multimodal transport chain as seen from the Transport User’s point of view. The Transport User needs information about all the possible transport services that can be used to build a complete transport chain. If the choices to be made by the Transport User or his agent are based upon the qualities of the transport services themselves, and not by which transport mode is used, the description of the transport services and the exchanges of information about the transport roles and services must be simple and common. Taking an intermodal approach requires a generalized view of the business processes, parties, and roles involved in the process.
The roles of the various Parties are defined as follows:
The Transport User is the role representing anyone who needs to have cargo transported. The Transport User provides the Transport Service Provider with instructions and detailed information about the cargo to be transported.
The Transport Service Provider is the role that ensures the transport of the cargo from the origin to the destination. This includes the management of the transport services and the operation of the transport means and handling equipment. A Transport Service Provider may also provide administrative services required for moving the cargo, such as cargo inspection.
The Transportation Network Manager is the role that extracts all information available regarding the infrastructure related to planning and executing transport and makes this information available to the Transport Service Provider.
The Transport Regulator is the role that receives all mandatory reporting (and checks if reporting has been carried out) in order to ensure that all transport services are completed according to existing rules and regulations.
It should be noted that one Party (person or organization) may take on different roles. For example, a freight forwarder is, on the one hand, a Transport Service Provider when its client is a Transport User. On the other hand, the freight forwarder is a Transport User when it acquires services from subcontractors to ensure that a transport service is carried out between origin and destination. In so doing, the freight forwarder can operate as agent, thus arranging a contractual relationship between the carrier and the shipper, or as principal, thus organizing the transportation chain by concluding contracts in its own name on behalf of the shipper(s).
The Intermodal Freight Management process takes place in three stages:
Planning: In this stage, the Transport Users express their transport demand in a standard format, the Transport Service Description Request. Transport Service Providers plan their transport services and announce them to Transport Users using the Transport Service Description. This stage also covers the arrangement of transport services between Transport Users and Transport Service Providers, establishing Transport Execution Plans. Once a Transport Execution Plan has been established, a Goods Item Itinerary is sent from the Transport Service Provider to the Transport User. The Goods Item Itinerary provides additional information related to the complete transport service.
Execution: In this stage, Transport Service Providers perform the physical transport of the cargo, and they exchange information related to the status of the transported cargo with the Transport Users using the Transportation Status document. Furthermore, in this stage Transport Service Providers exchange regulatory information with Transport Regulators as well as receive status regarding the transport infrastructure from Transportation Network Managers using the Transport Progress Status document.
Completion: This stage facilitates the issuing of proofs of delivery, claims, and invoices between Transport Service Providers and Transport Users.
These three stages are detailed in the following diagram, which shows the part played in the Intermodal Freight Management process by the UBL document types Transport Service Description, Transport Service Description Request, Transport Execution Plan, Transport Execution Plan Request, Transportation Status, Transportation Status Request, Transport Progress Status, Transport Progress Status Request, Goods Item Itinerary, and Freight Invoice.
The Transport Service Description is used to publish information about a transport service. A Transport Service Description Request is used to request such information. A transport service can be the physical transport of cargo between an origin and a destination, and it can also refer to other transport-related services such as terminal services, warehousing services, handling services, or document handling services.
The Transport Execution Plan is a plan established between a Transport User and a Transport Service Provider in order to collaborate and document the details surrounding the provision of a required transport service. Depending on the nature of the transport service and the business relationship between the Transport User and the Transport Service Provider, the process of establishing a Transport Execution Plan may be carried out by means of multiple interactions between the two roles, from the initial request from the Transport User up to the final agreement of the Transport Execution Plan among the parties involved.
The following diagram (Figure 61, “Transport Execution Plan”) shows the message exchange involved in a basic scenario. A Transport Execution Plan Request is sent from the Transport User in order to request a transport service. If the Transport Service Provider accepts the transport service request, he responds with a confirmed Transport Execution Plan. If the Transport Service Provider does not accept the transport service request, he responds with a rejected Transport Execution Plan.
The handling of a Transport Service Request will in many cases depend upon whether or not there is a pre-established agreement between the Transport User and the Transport Service Provider. If there is a pre-established agreement, the Transport Service Request can typically be considered a call-off from the agreement between the two parties. (An established framework agreement or contract usually defines terms and conditions and a total capacity limit, e.g., 100 container spaces on a vessel per year. A call-off occurs when the Transport User places an order against this agreement, for example a booking of 10 of the 100 container spaces.) The Transport User can confirm the Transport Execution Plan Request without the need to make a careful examination of the Transport Execution Plan submitted by the Transport Service Provider. The Transport User then sends a Transport Execution Plan with a status code indicating confirmation. Assuming acceptance by the Transport Service Provider, this scenario is considered a two-step choreography.
If a pre-established agreement does not exist (e.g., spot market services), the Transport User issues a Transport Execution Plan Request with a status code indicating that the Transport Execution Plan is not yet confirmed. The Transport User only confirms the Transport Execution Plan after a careful analysis of what has been submitted by the Transport Service Provider. This scenario is a three-step choreography where the Transport User confirms the Transport Execution Plan content in his second or subsequent response to the Transport Service Provider.
Updates to the Transport Execution Plan may be issued by either the Transport User or the Transport Service Provider. If the Transport User wants to update an existing Transport Execution Plan, a new instance of a Transport Execution Plan must be issued with reference to the original Transport Execution Plan. Similarly, if the Transport Service Provider wants to update an existing Transport Execution Plan, a new Transport Execution Plan replaces the original Transport Execution Plan with a reference to the original one. In either case, the Transport Execution Plan must include a document status code indicating that this is an update of the original content.
The cancellation of a Transport Execution Plan may be requested by either the Transport Service Provider or the Transport User. In either case, the Transport Execution Plan is sent with a document status code indicating that the Transport Execution Plan should be cancelled. For the cancellation to be effective, it must be accepted by the party receiving the cancellation request. Acceptance is signified by sending back a Transport Execution Plan with a status code indicating confirmation; rejection of the cancellation is signified by issuing a Transport Execution Plan with a status code indicating rejection.
Upon completion of the transport service covered by the Transport Execution Plan, a final Transport Execution Plan document is sent from the Transport Service Provider to the Transport User that includes a document status code indicating that the transport service is completed.
The Goods Item Itinerary specifies the route and time schedule for one or more transported items and is issued from the Transport Service Provider to the Transport User. The Goods Item Itinerary is initially issued from the Transport Service Provider to the Transport User after a Transport Execution Plan is confirmed by both parties. It may contain one or more transport segments with different Transport Execution Plans employing different Transport Service Providers. One transport service (one Transport Execution Plan) may cover more than one segment (leg).
In addition to providing an overview of the initial route and time schedule, the Goods Item Itinerary is used to document progress by recording new estimated times for departure or arrival and actual departure and arrival times. So when updates to the initial transport execution schedule occur, a new version of the Goods Item Itinerary is issued to the Transport User. A Goods Item Itinerary document thus contains information that may be used for analyzing the performance (in time) of transport services and for tracing the progress of cargo in transit if such analysis is required.
The Transport Progress Status collects and reports information about the status of the transport means. The Transport Service Provider issues a Transport Progress Status Request to ask the Transportation Network Manager for status information related to a specific transport vehicle, using the vehicle identification number.
The Transportation Network Manager then provides information about the location and time schedule status to the Transport Service Provider. During a transport service, there might be a number of information providers taking on the Transportation Network Manager role, offering Transport Progress Statuses to the Transport Service Provider.
The most typical use of Transport Progress Status is to ask assistance from the Transportation Network Manager when estimated times of arrival are established. Reporting on the status of the goods themselves is covered by the Freight Status Reporting process (see Section 2.3.5.3, “Freight Status Reporting”).
Organizations may be required to handle the return of containers, packaging, or defective product. The return involves the management of business rules, return inventory, assets, transportation, and regulatory requirements.
Currently there are no specific UBL digital business documents associated with these processes. However we anticipate and welcome submissions from the industry for document types that may be utilized in these processes.
In the Billing process, a request is made for payment for goods or services that have been ordered, received, or consumed. In practice, there are several ways in which goods or services may be billed.
Document types in these processes are Invoice, Credit Note, Debit Note, and Application Response.
For UBL we assume the following billing methods:
Traditional Billing
Using Credit Note
Using Debit Note
Self Billing (also known as billing on receipt)
Using Credit Note
Using Self Billed Credit Note
An Invoice defines the financial consequences of a business transaction. The Invoice is normally issued on the basis of one despatch event triggering one Invoice. An Invoice may also be issued for pre-payment on a whole or partial basis. The possibilities are:
Prepayment invoice (payment expected)
Proforma invoice (pre Despatch Advice, payment not expected)
Normal Invoice, on despatch for despatched items
Invoice after return of Receipt Advice
The Invoice only contains the information that is necessary for invoicing purposes. It does not reiterate any information already established in the Order, Order Change, Order Response, Despatch Advice, or Receipt Advice that is not necessary when invoicing. If necessary, the Invoice refers to the Order, Despatch Advice, or Receipt Advice by a Reference for those documents.
The Invoice allows for compound taxes, the sequence of calculation being implied by the sequence of information repeated in the data stream (e.g., Energy tax, with VAT—Value Added Tax—superimposed).
Charges may be specified either as a lump sum or by percentage applied to the whole Invoice value prior to calculation of taxes. Such charges cover:
Packaging
Delivery/postage
Freight
Documentation
Each Invoice Line refers to any related Order Line(s) and may also refer to the Despatch Line and/or Receipt Line.
Traditional billing is where the supplier invoices the customer when the goods are delivered or the services are provided. In this case, the invoice may be created at the time of despatch or when the Delivery Party acknowledges that the goods have been received (using a Receipt Advice).
When there are discrepancies between the Despatch Advice, Receipt Advice, or Invoice and the goods actually received, or the goods are rejected for quality reasons, the customer may send an Application Response or a Debit Note to the supplier. The supplier may then issue a Credit Note or another Invoice as required.
A Credit Note or Debit Note may also be issued in the case of retrospective price change.
Credit Notes or Debit Notes may be also issued after the Billing collaboration (as part of the Payment collaboration).
Billing using Credit Note is shown in the following diagram.
When using Credit Notes, the Supplier (in their Accounting role) is responsible for specifying the tax requirements.
Billing using Debit Note is shown in the following diagram.
When using Debit Notes, both the Supplier (in their Accounting role) and the Customer (in their Accounting role) are responsible for providing taxation information.
A self billing process is where a Customer “invoices” itself, in the name and on behalf of the Supplier, and provides the Supplier with a copy of the self billed invoice.
Self Billing using Credit Note is shown in the following diagram.
If the Supplier finds that the Self Billed Invoice is incorrect, e.g., wrong quantities or wrong prices, or if the goods have not been invoiced at all, it may send an Application Response or a Credit Note to the Customer. The customer may then verify whether the adjustment is acceptable or not and consequently issue another Self Billed Invoice or a Self Billed Credit Note.
Self Billing using Self Billed Credit Note is shown in the following diagram.
When using Self Billed Credit Notes, the Customer is raising the Self Billed Credit Note in the name and on behalf of the Supplier. Therefore the Supplier and the Customer are still both responsible for providing taxation information.
A Reminder may be used to notify the Customer of accounts due to be paid.
An extension of the Billing process is that of Freight Billing. This represents the billing process between the Transport Service Buyer (e.g., the Consignor) and Transport Service Provider (e.g., a Freight Forwarder) through the use of an invoice for freight charges.
The Transport Service Provider initiates the process of billing the Transport Service Buyer for logistic services.
The Freight Invoice lists the charges incurred in order to fulfil the agreed service.
This process defines the billing process for invoicing between suppliers of utilities (including electricity, gas, water, and telephony services) and private and public customers.
The Utility Statement supplements an Invoice with information about consumption of the utility’s services. An invoice may refer to one or more utility statements, and a utility statement may refer to one or more invoices.
In the payment notification process, the Payee (who is most often the Accounting Customer) is notified of any funds transferred, against the account of the Accounting Supplier, using a Remittance Advice document.
A Statement of account may be used to notify the Accounting Customer of the status of the billing.
One of the increasing challenges with undertaking digital business is discovering and recording the specific operational and technical capabilities of trading organizations to reciprocate in digital trading agreements that are interoperable. As the market relies less and less on single service provider hubs and moves to a federated 4-corner model for document exchanges, this information becomes distributed across various parties.
The Business Card allows a standardized way of presenting general trading capability information as well as company’s main communication channels and references to company presentations such as flyers and brochures.
The Digital Capability allows a standardized way of presenting digital trading capability ratification in a form that can be published or exchanged with trading partners. The digital capabilities of business partners are the source for building a Digital Agreement.
The data structures have been derived from the work of ebXML CPPA (Collaboration Protocol Profile and Agreement), OpenPEPPOL and other directory services initiatives.
In the UBL supply chain processes, two main actors, Customer and Supplier, represent the key organizations or people involved in the processes. Each of these actors may play various roles. Some processes may also involve supplementary roles that may be provided by different parties.
The actual role undertaken is dependent on the context of use. For example, the Despatch Party and Delivery Party as applied to the Procurement process may differ in the Transportation process. In the Transportation Process, two of the main roles are the Transport User and the Transport Service Provider. The Transport User is the role responsible for purchasing a transport service, while the Transport Service Provider is the role responsible for selling and executing a transport service. Both the Customer and the Supplier may be responsible for purchasing and following up the transport of goods, hence both these actors may undertake the Transport User role. In other words, the role of a specific actor depends on the specific circumstances.
The following table contains a description of the typical roles for the actor known as Party. Note that some roles require an extension of the information entities required. In UBL, the following are roles that extend the Party structure: Customer Party, Supplier Party, Contracting Party, Endorser Party, and Qualifying Party.
Table 1. Party Roles
Actor |
Role |
Description |
Example |
Synonyms |
Sends |
Receives |
---|---|---|---|---|---|---|
Customer Party | Originator | The party that had the original demand for the goods and/or services and therefore initiated the procurement transaction. The Originator participates in pre-ordering activity either through Request for Quotation and Quotation or by receiving a Quotation as a response to a punch-out transaction on a marketplace or Seller’s website. If the Originator subsequently places an Order, the Originator adopts the role of Buyer. The Originator is typically the contact point for queries regarding the original requirement and may be referred to in an Order Change, Order Cancellation, or Order Response. | If an employee requests a computer, the employing company may become the Buyer, but the employee is the Originator. They need to receive information about the order. | Request for Quotation | Quotation | |
Customer Party | Buyer | The party that purchases the goods or services on behalf of the Originator. The Buyer may be referred to in Order Response, Despatch Advice, Fulfilment Cancellation, Invoice, Self Billed Invoice, Credit Note, and Statement. | A company may delegate the task of purchasing to a specialized group to consolidate orders and gain greater discounts. | Order Point | Order, Order Change, Order Cancellation, Fulfilment Cancellation | Order Response, Fulfilment Cancellation |
Customer Party | Delivery | The party to whom goods should be delivered. The Delivery Party may be the same as the Originator. The Delivery Party must be referred to at line item level in Request for Quotation, Quotation, Order, Order Change, Order Cancellation, and Order Response. The Delivery Party may be referred to at line level in Invoice, Self Billed Invoice, Credit Note, and Debit Note. The Delivery Party may be stipulated in a transport contract. | If a municipality buys a wheelchair for a citizen, the wheelchair must be delivered to the citizen (the Delivery Party). In such cases the citizen may be notified before delivery of the wheelchair. | Delivery Point, Destination Party, Receiver, Recipient | Receipt Advice | Despatch Advice |
Customer Party | Accounting Customer | The party responsible for making settlement relating to a purchase and resolving billing issues using a Debit Note. The Accounting Customer must be referred to in an Order and may be referred to in an Order Response. In a Self Billing scenario, the Accounting Customer is responsible for calculating and issuing tax invoices. | If a kindergarten buys some toys they may be the Originator, Buyer, and Delivery Party, but the municipality may play the role of Accounting Customer—they are going to pay for it. | Invoice, Accounts Payable, Debtor | In a traditional Billing scenario: Debit Note, Application Response, and Remittance Advice In a Self Billing scenario: Self Billed Invoice, Self Billed Credit Note, and Remittance Advice | In a traditional Billing scenario: Invoice, Credit Note, and Statement; in a Self Billing scenario: Credit Note, Application Response, and Statement |
Supplier Party | Seller | The party responsible for handling Originator and Buyer services. The Seller party is legally responsible for providing the goods to the Buyer. The Seller party receives and quotes against Request for Quotation documents and may provide information to the Buyer’s requisitioning process through Catalogues and Quotations. | The organization that sells wheelchairs to municipalities. | Sales Point, Provider, Customer Manager | Quotation, Order Response, Order Response Simple, Catalogue, Catalogue Deletion, Catalogue Item Specification Update, Catalogue Pricing Update, Fulfilment Cancellation | Request for Quotation, Order, Order Change, Order Cancellation, Catalogue Request, Fulfilment Cancellation |
Supplier Party | Despatch | The party where goods are to be collected from. The Despatch Party may be stipulated in a transport contract. | The wheelchair Supplier may store chairs at a local warehouse. The warehouse will actually despatch the chair to the Delivery Party. The local warehouse is then the Despatch Party. | Despatch Point, Shipper, Sender | Despatch Advice | Receipt Advice |
Supplier Party | Accounting Supplier | The party who claims the payment and is responsible for resolving billing issues and arranging settlement. | There are cases where the Accounting Supplier is not the Seller party. For example, factoring, where the invoicing is outsourced to another company. | Accounts Receivable, Invoice Issuer, Creditor | In a traditional Billing scenario: Invoice, Credit Note, and Statement; in a Self Billing scenario: Credit Note, Application Response, and Statement | In a traditional Billing scenario: Debit Note, Account Response, and Remittance Advice In a Self Billing scenario: Self Billed Invoice, Self Billed Credit Note, and Remittance Advice |
Supplier Party | Payee | The party to whom the Invoice is paid. | The Accounting Supplier may not be the party to be paid due to changes in the organization, e.g., a company merger. | Accounts Receivable, Creditor | Remittance Advice | |
Customer Party | Contractor | The party responsible for the contract to which the Catalogue relates. | An organization has a central office for maintaining catalogues of approved items for purchase. | Central Catalogue Party, Purchasing Manager | Catalogue Request | Catalogue, Catalogue Deletion, Catalogue Item Specification Update, Catalogue Pricing Update |
Party | Provider | The party responsible for the integrity of the information provided about an item. | The manufacturer may publish and maintain the data sheets about a product. | Catalogue, Catalogue Deletion, Catalogue Item Specification Update, Catalogue Pricing Update | ||
Party | Receiver | A general role, describing the receiver of a document. For a catalogue, this can be the customer, a potential customer, or a third party exposing the document, for instance, an interim broker. | A marketplace may receive an Application Response. | Catalogue, Catalogue Deletion, Catalogue Item Specification Update, Catalogue Pricing Update, Application Response | ||
Party | Sender | The party sending a document. | A marketplace may send an Application Response. | Application Response | ||
Customer Party | Contracting Authority | The party responsible for making the contract relating to a tender ending up with a purchase. | If a kindergarten buys a lot of toys they may be a Contracting Authority in a Public Tender. | Customer, Debtor | Expression Of Interest Response, Qualification Application Request, Tender Contract, Tender Status, Unsubscribe From Procedure Response | Expression Of Interest Request, Qualification Application Response, and Tender Status Request, Tender Withdrawal, Unsubscribe From Procedure Request |
Supplier Party | Tenderer | The party responsible for handling Originator and Buyer services. The Tenderer party is legally responsible for providing the goods to the Contracting Authority. The Tenderer party receives the Expression Of Interest Response. | The organization that sells wheelchairs to municipalities. | Seller, Provider, Economic Operator | Expression Of Interest Request, Qualification Application Response, Tender Status Request, Tender Withdrawal, Unsubscribe From Procedure Request | Expression Of Interest Response, Qualification Application Request, Tender Contract, Tender Status, Unsubscribe From Procedure Response |
Party | Consignor | The party consigning the goods as stipulated in the transport contract. A Buyer, Delivery, Seller, or Despatcher Party may also play the role of Consignor. Also known as the Transport User. The Consignor may be stipulated in a transport contract. | The wheelchair Supplier may source from a local warehouse. The Freight Forwarder will collect the chair from the local warehouse, which is thus the Consignor. In this case, the warehouse also plays the role of Despatch Party to the Freight Forwarder. | Despatch Point, Shipper, Sender, Transport User | Forwarding Instructions, Packing List | Bill of Lading, Waybill, Freight Invoice, Transportation Status |
Party | Consignee | The party receiving a consignment of goods as stipulated in the transport contract. | The party taking responsibility for the receipt of the consignment covering the wheelchair. | Delivery Point, Transport Service Buyer | Forwarding Instructions, Freight Invoice | Bill of Lading, Waybill, Freight Invoice, Transportation Status |
Party | Freight Forwarder | The party arranging the carriage of goods, including connected services and/or associated formalities, on behalf of a Consignor or Consignee. Also known as the Transport Service Provider. The Freight Forwarder may also be the Carrier. The Freight Forwarder may create an Invoice and bill to the Transport Service Buyer for the transportation service provided. | The Consignor may have a contract with this Freight Forwarder, which is a Transport Services Provider, to arrange all their transport needs. | Shipping Agent, Broker, Courier, Transport Service Provider | Forwarding Instructions, Freight Invoice, Transportation Status | Bill of Lading, Waybill, Packing List |
Party | Carrier | The party providing physical transport services. | The Freight Forwarder may engage an airline company to deliver the wheelchair. The airline is then the Carrier and delivers the chair to the Delivery Party. | Freight Haulier, Shipper, Ships Agent, Shipping Company, Airline, Rail Operator, Road Haulier | Bill of Lading, Waybill | Forwarding Instructions |
Party | Exporter | The party who makes regulatory export declarations, or on whose behalf regulatory export declarations are made, and who is the owner of the goods or has similar right of disposal over them at the time when the declaration is accepted. | The wheelchair Supplier has to apply for a Certificate of Origin in order to sell the chairs overseas. | Seller, Consignor | Certificate of Origin | Application Response |
Party | Endorser | The party appointed by the Government of a country who has the right to certify a Certificate of Origin. This endorsement restricts goods imported from certain countries for political or other reasons. | The Government agency validates all the information provided by Exporter for Certificate of Origin approval. | Authorized Organization, Embassy | Certificate of Origin, Application Response | Certificate of Origin |
Party | Importer | The party who makes, or on whose behalf an agent or other authorized person makes, an import declaration. This may include a person who has possession of the goods or to whom the goods are consigned. | A specialized group in a company consolidates the purchase request and handles the receiving of goods. | Order Point, Delivery Party, Buyer, Customer, Consignee | Certificate of Origin | |
Party | Transport User | The Transport User is the role representing anyone who has a demand for transport services, books transport services, and follows up the execution of such services. | The manufacturer has to order transport of products from a carrier or freight forwarder (Transport Service Provider). | Transport Buyer, Logistics Service Client | Transport Execution Plan Request, Transportation Status Request, Transport Service Description Request | Transport Execution Plan, Transportation Status, Transport Service Description, Goods Item Itinerary |
Party | Transport Service Provider | The Transport Service Provider is the role that plans, markets and performs transport services. | The carrier or freight forwarder who arranges for transport services on behalf of a manufacturer (Transport User) | Transport Provider, Transport Seller, Logistics Service Provider | Transport Execution Plan, Transportation Status, Transport Service Description, Transport Progress Status Request, Goods Item Itinerary | Transport Execution Plan Request, Transportation Status Request, Transport Service Description Request, Transport Progress Status |
Party | Transportation Network Manager | The Transportation Network Manager is the role that extracts all information available regarding the infrastructure (static/dynamic) related to planning and executing transport and makes this information available to the Transport Service Provider. During a transport service, or even during a single leg, the Transport Service Provider may rely on information from several Transportation Network Managers. | The Traffic Information Centre (TIC) issuing information related to road work and/or traffic conditions as a service to a Transport Service Provider | Road Administration, Traffic Information Centre, Coastal Administration, Harbor Master, Railway Administration, Infrastructure Manager | Transport Progress Status | Transport Progress Status Request |
Party | Governor | The Governor is the role that governs an agreement or contract. | A legal entity who creates and maintain an agreement. | |||
Party | Participant | The Participant is the role agreeing on a set of digital processes, terms and conditions to ensure interoperability within a business network. A Buyer, Seller, Accounting Customer, Accounting Supplier, Service Provider Party may also play the role of Participant. A Participant in the role of a Business Party communicates its digital capabilities using a Digital Capability document. | A Service Provider agreeing on multi-lateral trading partner agreement governed by an e-Procurement network. | Digital Agreement, Application Response | Digital Agreement, Application Response | |
Party | Business | The Business Party is a general role that may be played by any other Party doing business according to a set of business and digital capabilities. A Business Party communicates its business information and capabilities to other parties using a Business Card. A Business Party communicates its digital capabilities to other parties using a Digital Capability document. | A Business Party supports the procurement business process according to a specific profile governed by an UBL user group. | Trading Partner, Service Provider, Economic Operator, Contracting Authority, Participant | Business Card, Digital Capability, Application Response | Business Card, Digital Capability, Application Response |
Party | Weighing | The Weighing Party is a role played by weighing stations, shippers, terminal operators and possibly other parties executing a weight measurement including verified gross mass measurements. | A Business Party supports the procurement business process according to a specific profile governed by an UBL user group. | Weighing Station, Weighing Provider | Weight Statement | Application Response |
Party | Responsible | The party responsible for signing the VGM on behalf of the Shipper. | A Weighing Party playing the role of a Responsible who signs a VGM. |
The UBL XSD schemas [XSD1][XSD2] are the only normative representations of the UBL document types and library components for the purposes of XML [XML] document validation and conformance.
All of the UBL XSD schemas are contained in the xsd
subdirectory of
the UBL release package (see Appendix A, Release Notes (Non-Normative) for more information
regarding the structure of the release package and Section 3.4, “Schema Dependencies”
for information regarding dependencies among the schema modules). The xsd
directory is further subdivided into an xsd/maindoc
subdirectory
containing the schemas for individual document types and an xsd/common
subdirectory containing schemas in the UBL common library. For convenience in implementing
the schemas, parallel (and technically non-normative) “runtime” sets with the
annotation elements stripped out are provided in the xsdrt/
directory.
The tables that follow describe each of the UBL document types. Along with a link to the normative schema for each document type, each table provides links to the corresponding “runtime” schema, model spreadsheets and summary report in HTML (see Appendix C, The UBL 2.2 Data Model (Non-Normative)), and example instance, if any (see Appendix F, UBL 2.2 Example Document Instances (Non-Normative)).
Description: A document to indicate the application’s response to a transaction. This may be a business response and/or a technical response, sent automatically by an application or initiated by a user.
Processes involved |
Any collaboration |
Submitter role |
Sender |
Receiver role |
Receiver |
Normative schema | |
Runtime schema | |
Summary report |
Description: A UBL wrapper that allows a document of any kind to be packaged with the UBL document that references it.
Processes involved |
Any collaboration |
Submitter role |
Sender |
Receiver role |
Receiver |
Normative schema | |
Runtime schema | |
Summary report |
Description: The document used to communicate a contract award to the winner.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document that conveys information about an instance of a transportation service and may under some circumstances serve as a contractual document For the service. See Bill of Lading and compare with Waybill.
Processes involved | |
Submitter role |
Freight Forwarder, Carrier |
Receiver role |
Consignor (or Consignee), Freight Forwarder |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to provide information about a business party and its business capabilities.
Processes involved | |
Submitter role |
Sender |
Receiver role |
Receiver |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.2 example instance |
Description: A document used by a Contracting Party to define a procurement project to buy goods, services, or works during a specified period.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document that describes items, prices, and price validity. See Catalogue.
Processes involved |
Catalogue, Create Catalogue, Delete Catalogue, Update Catalogue Item Specification, Update Catalogue Pricing, Initial Stocking of the Area by Producer, Permanent Replenishment, Price Adjustments, Transfer of Base Item Catalogue, Changes to the Item Catalogue, Changes to the Article Catalogue |
Submitter role |
Seller |
Receiver role |
Contracting Party |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to cancel an entire Catalogue.
Processes involved | |
Submitter role |
Seller |
Receiver role |
Contracting Party |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to update information (e.g., technical descriptions and properties) about Items in an existing Catalogue.
Processes involved | |
Submitter role |
Seller |
Receiver role |
Contracting Party |
Normative schema | |
Runtime schema | |
Summary report |
|
Description: A document used to update information about prices in an existing Catalogue.
Processes involved | |
Submitter role |
Seller |
Receiver role |
Contracting Party |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to request a Catalogue.
Processes involved | |
Submitter role |
Contracting Party |
Receiver role |
Seller |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document that describes the Certificate of Origin.
Processes involved | |
Submitter role |
Exporter, Issuer |
Receiver role |
Issuer, Importer |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document published by a Contracting Party to announce the awarding of a procurement project.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used by a Contracting Party to announce a project to buy goods, services or works.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to specify credits due to the Debtor from the Creditor.
Processes involved | |
Submitter role |
Supplier Accounting Party |
Receiver role |
Customer Accounting Party |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance | |
UBL 2.1 example instance |
Description: A document used to specify debts incurred by the Debtor.
Processes involved | |
Submitter role |
Customer Accounting Party |
Receiver role |
Supplier Accounting Party |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document used to describe the despatch or delivery of goods and services.
Processes involved | |
Submitter role |
Despatch |
Receiver role |
Delivery |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance |
Description: A document used to support business parties agreeing on a set of digital processes, terms and conditions to ensure interoperability.
Processes involved | |
Submitter role |
Agreement Participant |
Receiver role |
Agreement Participant |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.2 example instance | |
UBL 2.2 example instance |
Description: A document used to provide information about a business party and its digital capabilities.
Processes involved | |
Submitter role |
Sender |
Receiver role |
Receiver |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.2 example instance |
Description: A document used to provide information about document status.
Processes involved |
Any collaboration |
Submitter role |
Party currently controlling Status of the collaboration |
Receiver role |
Party requesting Status on collaboration |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to request the status of another document.
Processes involved |
Any collaboration |
Submitter role |
Party requesting Status on collaboration |
Receiver role |
Party currently controlling Status of the collaboration |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document sent by a requestor to a responder requesting information about a particular business process.
Processes involved |
Any collaboration |
Submitter role |
Requestor |
Receiver role |
Responder |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document sent by a responder to a requester answering a particular enquiry.
Processes involved |
Any collaboration |
Submitter role |
Responder |
Receiver role |
Requestor |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to specify the thresholds for forecast variance, product activity, and performance history beyond which exceptions should be triggered.
Processes involved | |
Submitter role |
Buyer, Seller |
Receiver role |
Buyer, Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document used to notify an exception in forecast variance, product activity, or performance history.
Processes involved | |
Submitter role |
Buyer, Seller |
Receiver role |
Buyer, Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document whereby an Economic Operator (the tenderer) makes an Expression Of Interest in a Call For Tenders to a Contracting Authority
Processes involved | |
Submitter role |
Tenderer (Economic Operator) |
Receiver role |
Contracting Authority |
Normative schema | |
Runtime schema | |
Summary report |
|
UBL 2.2 example instance |
Description: A document whereby a Contracting Authority accepts receiving an Expression Of Interest from an Economic Operator (the tenderer)
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer (Economic Operator) |
Normative schema | |
Runtime schema | |
Summary report |
|
Description: A document used to forecast sales or orders.
Processes involved | |
Submitter role |
Buyer, Seller |
Receiver role |
Buyer, Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document used to revise a Forecast.
Processes involved | |
Submitter role |
Buyer, Seller |
Receiver role |
Buyer, Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document issued to a forwarder, giving instructions regarding the action to be taken for the forwarding of goods described therein. See Forwarding Instructions.
Processes involved | |
Submitter role |
Consignor (or Consignee), Freight Forwarder |
Receiver role |
Freight Forwarder, Carrier |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance |
|
Description: A document stating the charges incurred for a logistics service.
Processes involved | |
Submitter role |
Freight Forwarder |
Receiver role |
Consignor or Consignee |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document used to cancel an entire Despatch Advice or Receipt Advice.
Processes involved | |
Submitter role |
Buyer or Seller |
Receiver role |
Seller or Buyer |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document providing details relating to a transport service, such as transport movement, identification of equipment and goods, subcontracted service providers, etc.
Processes involved | |
Submitter role |
Transport Service Provider |
Receiver role |
Transport User |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document to notify the deposit of a bid bond guarantee.
Processes involved | |
Submitter role |
Tenderer |
Receiver role |
Contracting Authority |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to initiate a return of goods. The producer is requesting the return of products that are not selling well, either to use in other places or to free up rack or shelf space.
Processes involved | |
Submitter role |
Seller |
Receiver role |
Buyer |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A report on the quantities of each item that are, or will be, in stock. This document is sent by a Buyer (for example a retailer) to a Seller (for example a producer).
Processes involved | |
Submitter role |
Buyer |
Receiver role |
Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document used to request payment.
Processes involved | |
Submitter role |
Supplier Accounting Party |
Receiver role |
Customer Accounting Party |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance | |
UBL 2.1 example instance | |
UBL 2.1 example instance |
Description: A document used to request product activity, forecast, or performance data.
Processes involved | |
Submitter role |
Buyer, Seller |
Receiver role |
Buyer, Seller |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to order goods and services.
Processes involved | |
Submitter role |
Buyer |
Receiver role |
Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance | |
UBL 2.1 example instance | |
UBL 2.0 example instance |
Description: A document used to cancel an entire Order.
Processes involved | |
Submitter role |
Buyer |
Receiver role |
Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document used to specify changes to an existing Order.
Processes involved | |
Submitter role |
Buyer |
Receiver role |
Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document used to indicate detailed acceptance or rejection of an Order or to make a counter-offer.
Processes involved | |
Submitter role |
Seller |
Receiver role |
Buyer |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document used to indicate simple acceptance or rejection of an entire Order.
Processes involved | |
Submitter role |
Seller |
Receiver role |
Buyer |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance | |
UBL 2.1 example instance |
Description: A document describing how goods are packed.
Processes involved | |
Submitter role |
Consignor |
Receiver role |
Freight Forwarder |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used by a contracting party to declare the intention to buy goods, services, or works during a specified period.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.2 example instance | |
UBL 2.2 example instance |
Description: A document reporting the movement of goods at specified retail locations for inventory tracking purposes.
Processes involved |
Collaborative Planning, Forecasting, and Replenishment, Vendor Managed Inventory |
Submitter role |
Buyer |
Receiver role |
Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance 1 | |
UBL 2.1 example instance 2 | |
UBL 2.1 example instance 3 |
Description: A document whereby a Contracting Authority makes a description of the required qualification Application (In Europe: ESPD Request) to an Economic Operator (the tenderer)
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer (Economic Operator) |
Normative schema | |
Runtime schema | |
Summary report |
|
Description: A document whereby an Economic Operator (the tenderer) makes a description of the required qualification Application (In Europe: ESPD Response) to an Contracting Authority
Processes involved | |
Submitter role |
Tenderer (Economic Operator) |
Receiver role |
Contracting Authority |
Normative schema | |
Runtime schema | |
Summary report |
|
Description: A document used to quote for the provision of goods and services.
Processes involved | |
Submitter role |
Seller |
Receiver role |
Originator |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance | |
UBL 2.1 example instance |
Description: A document used to describe the receipt of goods and services.
Processes involved | |
Submitter role |
Delivery |
Receiver role |
Despatch |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance |
Description: A document used to remind a customer of payments overdue.
Processes involved | |
Submitter role |
Supplier Accounting Party and/or Payee |
Receiver role |
Customer Accounting Party and/or Payee |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document that specifies details of an actual payment.
Processes involved | |
Submitter role |
Supplier Accounting Party and/or Payee |
Receiver role |
Customer Accounting Party and/or Payee |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance |
Description: A document used to request a Quotation for goods and services from a seller.
Processes involved | |
Submitter role |
Originator |
Receiver role |
Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance | |
UBL 2.1 example instance |
Description: A document used to specify basic information about retail events (such as promotions, product introductions, and community or environmental events) that affect supply or demand.
Processes involved | |
Submitter role |
Buyer, Seller |
Receiver role |
Buyer, Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A credit note created by the debtor in a self billing arrangement with a creditor; Self Billed Credit Note replaces Debit Note in such arrangements.
Processes involved | |
Submitter role |
Customer Accounting Party |
Receiver role |
Supplier Accounting Party |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: An invoice document created by the customer (rather than the supplier) in a Self Billing relationship.
Processes involved | |
Submitter role |
Customer Accounting Party |
Receiver role |
Supplier Accounting Party |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document used to report the status of orders, billing, and payment. This document is a statement of account, not a summary invoice.
Processes involved | |
Submitter role |
Supplier Accounting Party |
Receiver role |
Customer Accounting Party |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance |
Description: A report on the quantities of each item that are, or will be, in stock. This document is sent by a Seller (for example a producer) to a Buyer (for example a retailer).
Processes involved | |
Submitter role |
Seller (Producer) |
Receiver role |
Buyer (Retailer) |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document whereby an economic operator (the tenderer) makes a formal offer (the tender) to a contracting authority to execute an order for the supply or purchase of goods, or for the execution of work, according to the terms of a proposed contract.
Processes involved | |
Submitter role |
Tenderer |
Receiver role |
Contracting Authority |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document whereby a Contracting Authority sends information to the Economic Operator describing the final contract after a tendering procedure.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer (Economic Operator) |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document sent by a contracting party to an economic operator acknowledging receipt of a Tender.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document whereby a Contracting Authority sends information to the Economic Operator describing the status of a tendering procedure.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer (Economic Operator) |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document whereby an Economic Operator (the tenderer) asking about the details and status of a tendering procedure
Processes involved | |
Submitter role |
Tenderer (Economic Operator) |
Receiver role |
Contracting Authority |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document whereby an Economic Operator (the tenderer) makes a Tender Withdrawal to a Contracting Authority
Processes involved | |
Submitter role |
Tenderer (Economic Operator) |
Receiver role |
Contracting Authority |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document declaring the qualifications of a tenderer.
Processes involved | |
Submitter role |
Tenderer |
Receiver role |
Contracting Authority |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document issued by a procurement organization to notify an economic operator whether it has been admitted to or excluded from the tendering process.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer |
Normative schema | |
Runtime schema | |
Summary report |
|
Description: A document specifying trade item attributes relating to replenishment policies.
Processes involved | |
Submitter role |
Buyer, Seller |
Receiver role |
Buyer, Seller |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document used in the negotiation of a transport service between a transport user and a transport service provider.
Processes involved | |
Submitter role |
Transport Service Provider, Transport User |
Receiver role |
Transport User, Transport Service Provider |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document sent by a transport user to request a transport service from a transport service provider.
Processes involved | |
Submitter role |
Transport User |
Receiver role |
Transport Service Provider |
Normative schema | |
Runtime schema | |
Summary report |
|
UBL 2.1 example instance |
Description: A document sent from a transportation network manager to a transport service provider giving the status of the whereabouts and schedule of the transport means involved in a transport service.
Processes involved | |
Submitter role |
Transportation Network Manager |
Receiver role |
Transport Service Provider |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document sent from a transport service provider to a transportation network manager requesting a Transport Progress Status.
Processes involved | |
Submitter role |
Transport Service Provider |
Receiver role |
Transportation Network Manager |
Normative schema | |
Runtime schema | |
Summary report |
|
UBL 2.1 example instance |
Description: A document sent by a transport service provider to announce the availability of a transport service.
Processes involved | |
Submitter role |
Transport Service Provider |
Receiver role |
Transport User |
Normative schema | |
Runtime schema | |
Summary report |
|
UBL 2.1 example instance |
Description: A document requesting a Transport Service Description, sent from a party with a transport demand (transport user) to a party providing transport services (transport service provider).
Processes involved | |
Submitter role |
Transport User |
Receiver role |
Transport Service Provider |
Normative schema | |
Runtime schema |
|
Summary report |
|
UBL 2.1 example instance |
Description: A document to circulate reports of transportation status or changes in status (events) among a group of participants.
Processes involved | |
Submitter role |
Transport Service Provider |
Receiver role |
Transport User |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.1 example instance |
Description: A document requesting a Transportation Status report.
Processes involved | |
Submitter role |
Transport User |
Receiver role |
Transport Service Provider |
Normative schema | |
Runtime schema | |
Summary report |
|
UBL 2.1 example instance |
Description: A document communicating to a tenderer that the contract has been awarded to different tenderer.
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer |
Normative schema | |
Runtime schema | |
Summary report |
Description: A document whereby an Economic Operator (the tenderer) wants to Unsubscribe From Procedure and sends it to Contracting Authority
Processes involved | |
Submitter role |
Tenderer (Economic Operator) |
Receiver role |
Contracting Authority |
Normative schema | |
Runtime schema | |
Summary report |
|
Description: A document whereby a Contracting Authority accepts receiving an Unsubscribe From Procedure from an Economic Operator (the tenderer) and sends a confirmation
Processes involved | |
Submitter role |
Contracting Authority |
Receiver role |
Tenderer (Economic Operator) |
Normative schema | |
Runtime schema | |
Summary report |
|
Description: A supplement to an Invoice or Credit Note, containing information on the consumption of services provided by utility suppliers to private and public customers, including electricity, gas, water, and telephone services.
Processes involved | |
Submitter role |
Supplier Accounting Party |
Receiver role |
Customer Accounting Party |
Normative schema | |
Runtime schema | |
Summary report |
Description: A transport document describing a shipment. It is issued by the party who undertakes to provide transportation services, or undertakes to arrange for their provision, to the party who gives instructions for the transportation services (shipper, consignor, etc.). It states the instructions for the beneficiary and may contain the details of the transportation, charges, and terms and conditions under which the transportation service is provided. See Waybill and compare with Bill of Lading.
Processes involved | |
Submitter role |
Freight Forwarder, Carrier |
Receiver role |
Consignor (or Consignee), Freight Forwarder |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.0 example instance |
Description: A document used to report weight or verified mass measurements in the transport chain.
Processes involved | |
Submitter role |
Sender |
Receiver role |
Receiver |
Normative schema | |
Runtime schema | |
Summary report | |
UBL 2.2 example instance |
The xsd/common
directory contains schemas referenced by the
document schemas in xsd/maindoc
. Elements defined in the common schemas
constitute a library of reusable business data components from which the UBL document
schemas are (and customized document types may be) assembled. For a discussion of the way
schemas are assembled, see Appendix C, The UBL 2.2 Data Model (Non-Normative).
The name of each schema file together with a brief description of its contents is given below.
CommonBasicComponents
xsd/common/UBL-CommonBasicComponents-2.2.xsd
The CommonBasicComponents schema defines the global Basic Business Information Entities (BBIEs) that are used throughout UBL, serving, in effect, as a “global BBIE type database” for constructing documents. BBIEs are the “leaf nodes” of UBL documents, corresponding to individual data fields in traditional printed business forms.
CommonAggregateComponents
xsd/common/UBL-CommonAggregateComponents-2.2.xsd
The CommonAggregateComponents schema defines the Aggregate Business Information Entities (ABIEs) that are used throughout UBL, serving, in effect, as an “ABIE type database” for constructing the main documents.
For a discussion of the terms Basic Business Information Entity and Aggregate Business Information Entity, see Section C.4, “Business Information Entities”.
CCTS_CCT_SchemaModule
xsd/common/CCTS_CCT_SchemaModule-2.2.xsd
This schema provides Core Component Types as defined by [CCTS]. These types are used to construct higher-level data types in a standardized and consistent manner. This schema is defined by UN/CEFACT and should not be modified. It is imported by the UBL Unqualified Data Type Schema, and its types are the basis upon which UBL’s unqualified data types are defined.
UnqualifiedDataTypes
xsd/common/UBL-UnqualifiedDataTypes-2.2.xsd
This schema defines Unqualified Data Types for BBIE definition. These types are derived from the Core Component Types in
CCTS_CCT_SchemaModule
. Where an unqualified type is not based solely on an XSD data type, all CCTS supplementary components are made available in the UBL UDT from the CCTS CCT.QualifiedDataTypes
xsd/common/UBL-QualifiedDataTypes-2.2.xsd
[CCTS] permits the definition of Qualified Datatypes as derivations from CCTS-specified Unqualified Datatypes. In UBL 2.2, all data type qualifications are expressed in the [CVA] file
cva/UBL-DefaultDTQ-2.2.cva
. The UBL-QualifiedDataTypes-2.2.xsd file in the UBL 2.2 release has declarations for each qualified type being only an unmodified restriction of the base unqualified data type, thus adding no constraints. The Common Basic Components type declarations point to the XSD qualified types where the BBIEs are qualified in the CCTS model, but all BBIEs are effectively unqualified.See Appendix D, Data Type Qualifications in UBL (Non-Normative) for information regarding UBL 2.2 data type derivation.
UBL extensions enable the validation of user-defined additions to the standard schemas, which are sometimes needed to satisfy legal requirements and can perform other useful functions as well. For further information regarding the UBL extension mechanism, see [Customization].
CommonExtensionComponents
xsd/common/UBL-CommonExtensionComponents-2.2.xsd
The CommonExtensionComponents schema defines the extension scaffolding used in all UBL document types, providing metadata regarding the use of an extension embedded in a UBL document instance (see Section 3.5, “Extension Methodology and Validation”).
ExtensionContentDatatype
xsd/common/UBL-ExtensionContentDataType-2.2.xsd
The ExtensionContentDataType schema specifies the actual structural constraints of the extension element containing the foreign non-UBL content. By default, the version of this schema provided in the UBL 2.2 distribution imports the UBL Signature Extension module and namespace (see Section 3.3.5, “Signature Extension Schemas”). This both enables support by default for advanced digital signatures and serves as an illustration of the way extensions are defined in UBL.
This is the only schema intended to be modified by a user when it is necessary to support the constraints of additional user-defined extension structures. This is accomplished by adding other schema import directives, as is already done for the signature extension and that extension’s use of XAdES. Without adding additional directives, the user’s constructs found under the extension point will not be validated.
No changes are required to the complex type declaration for
ExtensionContentType
. The original declaration is considered the normative declaration but may be modified by users to accommodate restrictions they impose on the presence of extensions. To promote interoperability, imposing such restrictions on the type declaration is not recommended.
UBL 2.2 schemas are supplied with a predefined standard extension that supports advanced digital signatures; see Section 3.4, “Schema Dependencies” and Section 5.4, “UBL Extension for Enveloped XML Digital Signatures” for further information regarding the UBL extension supporting digital signatures such as XAdES.
CommonSignatureComponents
xsd/common/UBL-CommonSignatureComponents-2.2.xsd
The CommonSignatureComponents schema defines the scaffolding structures containing the IETF/W3C Digital Signature information XML elements related to either the entire document or particular signature business objects found within the document.
SignatureAggregateComponents
xsd/common/UBL-SignatureAggregateComponents-2.2.xsd
The SignatureAggregateComponents schema defines those Aggregate Business Information Entities (ABIEs) that are used for signature constructs not defined in the common library.
SignatureBasicComponents
xsd/common/UBL-SignatureBasicComponents-2.2.xsd
The SignatureBasicComponents schema defines those Basic Business Information Entities (BBIEs) that are used for signature constructs not defined in the common library.
For a discussion of the terms Basic Business Information Entity and Aggregate Business Information Entity, see Section C.4, “Business Information Entities”.
xmldsig-core-schema
xsd/common/UBL-xmldsig1-schema-2.2.xsd
This is a copy of the IETF/W3C Digital Signature core schema file, modified only to include a header and to import the renamed other digital signature schema fragments.
xmldsig-core-schema
xsd/common/UBL-xmldsig11-schema-2.2.xsd
This is a copy of the IETF/W3C Digital Signature core schema file, modified only to include a header.
xmldsig-core-schema
xsd/common/UBL-xmldsig-core-schema-2.2.xsd
This is a copy of the IETF/W3C Digital Signature core schema file, modified only to include a header and to remove the unnecessary PUBLIC and SYSTEM identifiers from the DOCTYPE.
XAdES01903v132-201601
xsd/common/UBL-XAdES01903v132-201601-2.2.xsd
This is a copy of the XAdES v1.3.2 schema file, modified only to change the importing URI for the XML digital signature core schema file.
The presence of this schema file does not oblige the use of XAdES. It is provided only as a convenience for those users who choose to include an XAdES extension inside of a digital signature.
XAdES01903v141-201601
xsd/common/UBL-XAdES01903v141-201601-2.2.xsd
This is a copy of the XAdES v1.4.1 schema file, modified only to change the importing URI for the XAdES v1.3.2 and the XML digital signature core schema files.
The presence of this schema file does not oblige the use of XAdES. It is provided only as a convenience for those users who choose to include an XAdES extension inside of a digital signature.
The following diagram details the dependencies among the schema modules making up a UBL 2.2 document schema.
The UBL schemas define in ExtensionContentDataType the
content of each extension to be a single element in any namespace. The schemas are delivered
supporting the UBL standardized extension for digital signatures (namespaces with prefixes
sig:
, sac:
and sbc:
, though the
prefix values are not mandatory) by importation. For more information regarding the
signature extension, see Section 5.4, “UBL Extension for Enveloped XML Digital Signatures”.
As shown at the bottom and right in this diagram, a set of XSD schemas supporting a
different user-customized extension can be engaged by replacing the delivered ExtensionContentDataType schema fragment with one also importing the
required custom schema apex fragment that defines the custom content (depicted using
namespaces with example prefixes xxx:
, xac:
and
xbc:
).
The namespaces shown in the shaded boxes (with prefixes qdt:
,
udt:
, ccts-cct:
and ccts:
) exist
for the management of the schema components only and have no utility in UBL XML document
instances. Declaring unused namespaces in an XML instance is superfluous and does not impact
on conformance, but having them present may be confusing or misleading to the reader.
The relationship of the UBL schemas to the UBL data model is illustrated in Figure C.1, “UBL Data Model Realization”.
There exist many established XML vocabularies expressing useful semantics for information exchange. The W3C digital signature vocabulary is but one example of such a vocabulary that has its own governance, life-cycle and publication schedule. It is futile to attempt to mimic all of an established vocabulary’s constructs as new UBL constructs and keep up with changes made in their life cycle. Moreover, it is untenable to ask users to re-frame all of the content of an established vocabulary into any such new UBL constructs.
Also, user communities may have the need to exchange information that is found neither in the UBL schemas nor in an established XML vocabulary. A colloquial XML vocabulary can be designed within which this information is expressed. Should the user community wish to promote the inclusion of their additional semantics into the UBL specification, the UBL Maintenance Governance Procedures [Governance] outlines how one would use the extension point and submit proposals for enhancements.
The UBL extension scaffolding allows the inclusion of multiple extensions in any UBL instance, be they structured by established or colloquial XML vocabularies.
Every UBL instance is allowed to contain extension content using the element
<ext:UBLExtensions>
in the extension namespace
urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2
(there are no constraints on the namespace prefix, only the namespace URI). This element
must be the first child element of the document element. It must contain one or more
<ext:UBLExtension>
elements.
Each <ext:UBLExtension>
element contains the metadata and
content of a single extension. All extension metadata is optional, and the extension
content is mandatory. The extension content element contains as its only child the apex
element, in a namespace other than the UBL extension namespace, of an arbitrary XML
structure.
Table 2. UBL Extension Metadata And Content
Element name | Card. | Type | Description |
---|---|---|---|
cbc:ID | 0..1 | Identifier | An identifier for the Extension assigned by the creator of the extension. |
cbc:Name | 0..1 | Name | An identifier for the Extension assigned by the creator of the extension. |
ext:ExtensionAgencyID | 0..1 | Identifier | An agency that maintains one or more Extensions. |
ext:ExtensionAgencyName | 0..1 | Name | The name of the agency that maintains the Extension. |
ext:ExtensionVersionID | 0..1 | Identifier | The version of the Extension. |
ext:ExtensionAgencyURI | 0..1 | Identifier | A URI for the Agency that maintains the Extension. |
ext:ExtensionURI | 0..1 | Identifier | A URI for the Extension. |
ext:ExtensionReasonCode | 0..1 | Code | A code for reason the Extension is being included. |
ext:ExtensionReason | 0..1 | Text | A description of the reason for the Extension. |
ext:ExtensionContent | 1 | Element | The definition of the extension content. |
An excerpt of the example instance
that includes a single
extension without extension metadata is as follows:xml/MyTransportationStatus.xml
<TransportationStatus
xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2"
xmlns="urn:oasis:names:specification:ubl:schema:xsd:TransportationStatus-2">
<!--this document needs additional information not defined by the UBL TC-->
<ext:UBLExtensions>
<ext:UBLExtension>
<ext:ExtensionContent>
<mec:Additional xmlns:mec="urn:X-MyCompany:Extension"
xmlns:mac="urn:X-MyCompany:Aggregate"
xmlns:mbc="urn:X-MyCompany:Basic">
<mac:QualificationLevel>
<cbc:ID>L1</cbc:ID>
<cbc:Description>Level 1</cbc:Description>
<mbc:LevelPrerequisite>Level0</mbc:LevelPrerequisite>
</mac:QualificationLevel>
...
</mec:Additional>
</ext:ExtensionContent>
</ext:UBLExtension>
</ext:UBLExtensions>
<!--the remainder is stock UBL-->
<cbc:UBLVersionID>2.1</cbc:UBLVersionID>
<cbc:CustomizationID>urn:X-demo:TransportShipments</cbc:CustomizationID>
...
</TransportationStatus>
The UBL Digital Signature extension described in Section 5, “UBL Digital Signatures” is built into the UBL distribution and validates transparently.
Users wishing to validate other extensions found in the instance simply revise the
UBL-ExtensionContentDataType-2.2.xsd
schema fragment. An
<xsd:import>
directive is added to incorporate the schema
constraints of the apex of another extension to be validated in the single pass of XSD
validation. Figure 76, “UBL Schema Dependencies” shows the replacement of the
schema fragment with one in which user-defined extension modules with namespaces
ext:
, xxx:
, xac:
, and
xbc:
augment the digital signature extension modules with namespaces
ext:
, sig:
, sac:
,
sbc:
and ds:
.
Due to limitations of W3C Schema validation semantics (this is not the case in RELAX NG [RELAX NG], for example), the apex element of the extension in the instance being validated cannot be constrained solely to the apex element declared. W3C Schema’s lax validation permits any element declared in any schema fragment to be the apex of an extension. Thus, an instance will pass when a known extension element not permitted by the user to be an apex element is in the place of an apex element. This is simply regarded by downstream processes as an unknown extension and will likely be ignored.
The following points should be noted:
Extension designers should follow the example by providing separate namespaces for
apex element, aggregate constructs, and basic constructs if they wish the new items to
be considered for inclusion in future UBL releases. This structures the new items for
inclusion in the UBL common library. See
for a document
instance exemplifying the recommended treatment of namespaces in a colloquial XML
vocabulary.xml/MyTransportationStatus.xml
Whenever possible, one should use existing UBL common library aggregate and basic constructs in extensions rather than inventing new items with the same semantics. However, a common library aggregate construct should only be used when the entire aggregate and all of its descendants are applicable in the extension context without any changes. If any items must be removed, then a new extension aggregate with a new local name should be used. If all the constructs in the common library aggregate are applicable but some items need to be added, then a new extension aggregate with the same name should be created by adding the new constructs to a copy of the common library aggregate.
The UBL Digital Signature extension described in Section 5, “UBL Digital Signatures” has been modeled as an example to follow when designing and writing other custom extensions.
In addition to the UBL document constraints formally expressed by the schemas in Section 3, “UBL 2.2 Schemas”, UBL mandates several other rules governing conforming UBL instances that cannot be expressed using W3C Schema. These additional UBL document rules, addressing XML instance [XML] validation, character encoding, and empty elements, are specified below.
These rules first appeared in the OASIS UBL 1.0 and UBL 1.0 NDR Standards. They are listed here because logically they belong with the great majority of UBL instance constraints specified in the schemas. To aid in coordinating references between these various publications, the rules below retain their original “IND” labels. The former IND4 was removed in the revision process leading to UBL 2.0.
Additional document constraints do not apply to the arbitrary content of extensions expressed in a UBL document as described in Section 3.5, “Extension Methodology and Validation”.
The UBL library and document schemas are targeted at supporting business information exchanges. Business information exchanges require a high degree of precision to ensure that application processing and corresponding business actions are reflective of the purpose, intent, and information content agreed to by both trading partners. Schemas provide the base mechanism for ensuring that instance documents do in fact support these requirements.
UBL recommends a two-phase approach for validation of rules related to specific data content (such as to check of code list values). See Appendix E, UBL 2.2 Code Lists and Two-phase Validation (Non-Normative) for a description of this approach.
XML supports a wide variety of character encodings. Processors must understand which character encoding is employed in each XML document. XML 1.0 supports a default value of UTF-8 for character encoding, but best practice is always to identify the character encoding being employed.
[IND2] All UBL instance documents MUST identify their character encoding within the XML declaration.
Example:
<?xml version="1.0" encoding="UTF-8"?>
UBL, as an OASIS TC, is obligated to conform to agreements OASIS has entered into. OASIS is a liaison member of the ISO IEC ITU UN/CEFACT eBusiness Memorandum of Understanding Management Group (MOUMG). Resolution 01/08 (MOU/MG01n83) requires the use of UTF-8.
[IND3] In conformance with ISO IEC ITU UN/CEFACT eBusiness Memorandum of Understanding Management Group (MOUMG) Resolution 01/08 (MOU/MG01n83) as agreed to by OASIS, all UBL XML SHOULD be expressed using UTF-8.
Example:
<?xml version="1.0" encoding="UTF-8"?>
Use of empty elements within XML instance documents is a source of controversy for a variety of reasons. An empty element does not simply represent data that is missing. It may express data that is not applicable for some reason, trigger the expression of an attribute, denote all possible values instead of just one, mark the end of a series of data, or appear as a result of an error in XML file generation. Conversely, missing data elements can also have meaning—that the trading partner does not provide that data. In information exchange environments, different trading partners may allow, require, or ban empty elements. UBL takes the position that empty elements do not provide the level of assurance necessary for business information exchanges and therefore must not be used.
[IND5] UBL-conforming instance documents MUST NOT contain an element devoid of content or containing null values.
An important implication of this rule is that every container UBL element must contain at least one of its possible constituents even if all of its possible constituents are declared to be optional.
To ensure that no attempt is made to circumvent rule IND5, UBL also prohibits attempting to convey meaning by omitting an element (i.e., an optional element may be omitted, but that omission cannot carry a specific meaning upon which an action is conditioned).
These constraints are consistent with the principle described in Section 2.2.2, “Manifest Values” that the recipient must receive all pertinent information manifest in the UBL document. Relying on the absence of a construct would require the recipient to know of the sender’s intention with that construct being absent. For reliable communication this cannot be assumed.
Natural language text elements such as Note and Description appear throughout the UBL document model. They are of the same unstructured Text type as character data fields that are not intended for natural language prose, such as Address Line.
All natural language text elements in UBL are repeatable within some container; for example, all Note elements are repeatable as adjacent siblings under a common parent. Despite appearances, these multiple text elements are not intended for the representation of separate paragraphs or divisions within a single parent text; rather, each Note element (for example) contains the entire text of the note in one of the languages in which the note is provided. In other words, UBL allows 0..n Note or Description elements in order to present the same note or description in 0..n languages, not to reflect structures such as paragraphs internal to a text in a single language. Since UBL text elements are intended for unstructured sequences of character data, more complex texts should be located in external documents and associated with the UBL message using document references.
UBL enforces this restriction with the following two rules:
Attributes in UBL are used exclusively for supplemental components of the data types of basic business information entities. An empty attribute conveys no information but may be the source of confusion for users.
[IND7] UBL-conforming instance documents MUST NOT contain an attribute devoid of content or containing null values.
This section provides the context for the use of UBL digital signatures and then defines profiles for advanced digital signatures in UBL and a specific UBL extension that implements one specific kind of advanced digital signature.
There are certain circumstances in which it becomes necessary to electronically sign UBL documents. This can be the case when creating tenders or invoices. For example, in some countries digitally signing electronic invoices is required by law.
UBL (without extension) has a data structure (known as Signature) for defining electronic signatures and a number of elements for using such signatures in a document. To integrate UBL into the larger standards environment, this section associates the IETF/W3C XML Digital Signature specification [xmldsig] (a general framework for digitally signing XML documents) with the signature elements provided by UBL. These include specific provisions to use extensions supporting [XAdES], XML Advanced Electronic Signatures (ETSI TS 101 903), when the electronic signing of UBL documents is necessary to satisfy legal and technical requirements.
XAdES extends XMLDSig for use with advanced and qualified electronic signatures as specified in European Directive [1999/93/EC]. Use of XAdES and the concept of Advanced Electronic Signature is not limited to Europe, as it is being adopted by many countries outside the EU, and, at the time of publication of this specification, it is undergoing international standardization in ISO as ISO 14533-2:2012 [XAdES (ISO)].
One important benefit of XAdES is that it allows the addition of information and timestamps that extend the validity of a signature beyond the expiration or revocation of the electronic certificates involved in signature verification or the obsolescence of the underlying cryptographic keys and algorithms. By extending XMLDSig with additional embedded syntax and processing, XAdES satisfies the European Directive on a Community Framework for Electronic Signatures as well as other use cases requiring long-term preservation of signed documents. XAdES contains several modules that permit various levels of security, such as content commitment and non-repudiation enforcement with timestamps and long-term signature verification.
The two digital signature profiles provided in UBL represent two approaches to signing UBL documents: enveloped and detached. Each of these approaches uses XMLDSig in a way that may or may not include XAdES features. In other words, the mechanisms implemented here can be used not only to implement XAdES in these two ways but also to implement other signature technologies based on XMLDSig as well.
Digital signatures, when appropriate rules and functions are used, can support the following properties for a document:
Integrity: the document has not been modified since it was signed.
Authenticity: the identity of the party creating the signature that applies to the document is certified.
Non-repudiation (content commitment): the document signer cannot deny its involvement in creating and/or approving the document (depending on the context and signer role).
Anteriority: associating a time-stamp to the signature, a proof that the signature (and therefore the signed document) existed before a certain point in time.
[xmldsig] defines XML Signature processing rules and syntax to provide integrity and message authentication and/or signer authentication services for data of any type, whether located within the XML that includes the signature or elsewhere. [RFC3161] specifies a standard format for time-stamping that can be used with XMLDSig and XAdES.
The [1999/93/EC] directive defines the following technology-neutral requirements that an electronic signature must meet to be considered an Advanced Electronic Signature (AdES) and have legal validity:
it is uniquely linked to the signatory;
it is capable of identifying the signatory;
it is created using means that the signatory can maintain under his sole control; and
it is linked to the data to which it relates in such a manner that any subsequent change of the data is detectable.
The Qualified Signature (QS) is also defined as an AdES based on Qualified Certificates (QC) and Secure Signature Creation Devices for signing operations. In Europe, QS is equivalent to handwritten signature provided it is based on a QC issued by an accredited Certificate Service Provider. These references are provided only for informational use and refer to the framework defined in [1999/93/EC].
XAdES extends XMLDSig to support AdES, but its adoption is not limited to an EU context, as similar requirements are in place in other countries. The introduction to [XAdES] reads, in part,
The XML advanced electronic signatures defined in the present document will be built by incorporating to the XML signatures as defined in XMLDSIG one new
ds:Object
XML element containing the additional qualifying information.
That XAdES is completely embedded in XMLDSig ensures that the UBL profiles for XMLDSig are sufficient to support XAdES. These profiles also support other existing or future extensions of XMLDSig that are completely embedded in XMLDSig syntax. These other possible UBL digital signature profiles may or may not use the XAdES extensions to XMLDSig.
It is important to note that XAdES and XMLDSig define digital signature processing rules and syntax but do not cover the implementation of security measures required for an AdES, which are out of scope for UBL.
Implementation may depend on local regulations in place and specific provisions set by the authority issuing the certificates supporting the signature. The implementer has to determine the set of requirements that apply to the specific context of use and determine accordingly the suitability of the standards and the specific profiles to be used. XAdES can help in fulfilling legal requirements, but this is not just a matter of correctly applying a technical standard. Users are advised to examine the regulations applicable to their specific context of use.
An XML signature may be (non-exclusively) described (per XMLDSig and XAdES) as detached, enveloping, or enveloped.
Detached. The signature applies to content that
is external to the <ds:Signature>
element and can be identified
via a URI or transform. Consequently, the signature is “detached” from the content it
signs. This definition typically applies to separate data objects, but it also
includes the case where the <ds:Signature>
and signed data
object are sibling elements residing within the same XML document.
Enveloping. The signature applies to content
found within a <ds:Object>
element of the signature itself. The
<ds:Object>
(or its content) is identified via a
<ds:Reference>
(using a URI fragment identifier or
transform).
Enveloped. The signature applies to the XML
content that contains <ds:Signature>
as an element.
Implementations of enveloped signature(s) must take care not to include the signature
in the calculation of the signature value.
UBL defines two profiles for signing a UBL document: enveloped and detached.
A compliant implementation of XAdES guarantees wide acceptance in implementing legal regulations, such as European Commission Directive [1999/93/EC] and European Commission Decision [2011/130/EU], and it supports best practices in eInvoicing eProcurement eBusiness, eInvoicing eProcurement eBusiness, and eInvoicing eProcurement eBusiness in general as set forth by relevant standard bodies such as CEN ([CWA15580] and [CWA15579]).
The UBL implementation of XAdES provides the following additional properties:
A signed UBL document will be processed correctly by any compliant UBL software (including UBL software that is not XMLDSig/XAdES aware) and by any compliant XMLDSig/XAdES verification software (including software that is not UBL aware).
No change is required for currently defined UBL or XMLDSig/XAdES syntaxes.
The extension mechanism specified here supports any XMLDSig/XAdES form, leaving to the implementer the choice of the most appropriate one according to the specific legal framework or application context.
XAdES defines a set of forms that extends XMLDSig and allows adding some validation data to the signature.
The two basic forms are:
XAdES-BES, which satisfies the minimum requirements for AdES; and
XAdES-EPES, which builds on XAdES-BES to include a security policy identifier that specifies the rules followed to validate the signature.
A conforming XAdES signature generation and verification implementation supports at least XAdES-BES or XAdES-EPES.
The other forms can be built by the signature generator or the signature verifier by extending one of the two basic forms. They are:
XAdES-T, where a timestamp is added to enforce content commitment (non-repudiation) and as a proof of anteriority. This envelope allows ascertaining the validity of a signature in case the signer certificate is later revoked.
XAdES-C, which adds to the signed document a complete reference to verification data (certificates and revocation lists) to support long-term signature verification.
XAdES-X, which adds timestamps to XAdES-C references to protect against future compromise of certificates.
XAdES-X-L, which is similar to XADES-X but adds real certificates and revocation lists instead of just references.
XAdES-A, which adds timestamps (periodically, as required) to extend the validity period for long-term storage, taking into account a possible weakening of the algorithms used to sign the document and related certificates during the storage period.
No specific XAdES form is recommended for a UBL document, as this choice depends on the specific context of use, agreements between the parties, and local regulations.
The main requirements to be addressed when choosing a specific signature profile can be divided into the following categories:
Legal requirements. In some countries a digital signature is required on electronic invoices. It can also be compulsory in electronic procurement, especially in a cross-border context, to have a digital signature on the key document exchanged, e.g., a response to a request for tender. Another important legal requirement is long-term document preservation, for a storage period that in general is specific to each country and can span many years. The requirement to guarantee the integrity and authenticity of all fiscally relevant archived documents, as specified, for example, by [CWA15580] for electronic invoices, can be met with digital signatures when proper XAdES forms are used.
Business requirements. A digital signature can reduce the risks associated with a business transaction (e.g., content commitment of a commercial order, proof-of-origin and integrity of an invoice), and its use can be provided for in the interchange agreement between parties. The choice of the signature format and its application is a key factor in achieving interoperability.
Process requirements.The presence of the digital signature should not add any specific constraints on UBL document content processing. If the signed document remains a valid UBL document, the signature can be verified at any stage of the process: it should be possible to validate a signed document at any time “as is” by UBL and XAdES verifiers.
Archiving of UBL documents also can be an important issue to consider, as document preservation has specific requirements.
UBL specifies two profiles for use in digitally signing UBL documents:
Enveloped Signature Profile: One or more signatures are added to the UBL document inside a single identifiable and dedicated UBL extension. Other UBL extensions MAY be present provided they have different identifiers so that they can be distinguished from the one that contains the document signature(s). This profile is defined such that UBL content processing can be separated from electronic signature processing, both on the issuing side and on the receiving side, and specialized applications can be devoted to each function. The UBL application does not need to be electronic signature aware, and the electronic signature application does not need to be involved in the management of the UBL syntax. A signature business object in the UBL document may reference a particular electronic signature in the extension.
Detached Signature Profile: The signature is outside the UBL document content in another information resource. Some mechanism has to be defined by the implementer to send or make available the signature to the recipient. This method of signing may be identified in the UBL document. This approach can be useful to avoid or minimize any kind of modification to the UBL document and is compatible with other signature methods not explicitly referenced by this profile.
The two profiles for adding one or more digital signatures to a UBL document are based on [xmldsig]. These profiles and their associated methods decouple the UBL document to be signed from any specificity in the digital signature standard adopted within XMLDSig. The XAdES standard is an example of a standard use of XMLDSig. UBL users may use any standard built on XMLDSig or simply use XMLDSig as it stands without any extensions.
Managing XML signatures inside of a UBL document is described in Section 5.3.2, “Enveloped XML Signatures in UBL Documents”. Managing XML signatures outside of a UBL document is described in Section 5.3.3, “Detached XML Signatures for UBL Documents”.
Both profiles support co-signatures, i.e., a UBL document can be independently cosigned by multiple signers in any order and at any time. Both profiles support countersignatures, i.e., a UBL document can have its signatures signed by another signature. The enveloped signature profile supports a final signature, i.e., a UBL document once signed with a final signature cannot have any other signature added without invalidating the final signature.
The choice of the most suitable profile should take into account the specific document processing and delivery infrastructure.
The main advantage of the enveloped profile is that the signature(s) are embedded in the UBL document (which syntactically remains a valid UBL document). This means that the transport of the signatures is guaranteed by the UBL document delivery infrastructure.
The detached signature profile has a simpler preparation phase and signature procedure, but specific means to send or make available the signature(s) to the recipient have to be implemented. A standard container like [ODFP] can be used to associate the UBL document with detached advanced electronic signature(s) that apply to it. The simple [ASiC] container (ASiC-S) can be created later than signature generation in such a way that it contains a UBL document and one or more detached signatures that apply to it.
The enveloped signature profile supports one or more signatures to be applied to a
UBL document and embedded in the UBL document itself inside a dedicated extension. This
profile can be used with all UBL documents under their respective
<ext:UBLExtensions>
extension points. UBL syntax implementing
the enveloped profile, together with examples of its use, are provided in Section 5.4, “UBL Extension for Enveloped XML Digital Signatures”.
The user MAY choose to indicate in a <cac:Signature>
element
that the signature details are found in the signature extension. The URI
urn:oasis:names:specification:ubl:dsig:enveloped
is reserved as a
value for <cbc:SignatureMethod>
to signal this. The URI
urn:oasis:names:specification:ubl:dsig:enveloped:xades
MAY be used as a value for <cbc:SignatureMethod>
to signal when
XAdES is in use. Additionally, the user MAY include a <cbc:ID>
child of <cac:Signature>
for referencing purposes from the
enveloped signature. The identifier used can be any value, but for convenience the URI
of a URN beginning with
urn:oasis:names:specification:ubl:signature:
,
ending with the local name of the parent of the signature business object, and
optionally followed with a colon and number, as in the
urn:oasis:names:specification:ubl:signature:IssuerEndorsement
example, is reserved for this purpose for UBL users. As with all identifiers, the
identifier SHOULD exist and SHOULD be unique across all identifier values. An example is
as follows:
<cac:Signature>
<cbc:ID>urn:oasis:names:specification:ubl:signature:Invoice</cbc:ID>
<cbc:SignatureMethod
>urn:oasis:names:specification:ubl:dsig:enveloped</cbc:SignatureMethod>
<cac:SignatoryParty>
<cac:PartyIdentification>
<cbc:ID>MyParty</cbc:ID>
</cac:PartyIdentification>
</cac:SignatoryParty>
</cac:Signature>
See Section 5.5, “Digital Signature Examples” for a sample UBL Invoice that references an enveloped digital signature.
Two different syntaxes are used in UBL enveloped signatures: UBL-specified scaffolding under the extension point used to contain the signature information and IETF/W3C-specified information for each digital signature.
A transformation element is also present to prevent a signature from being invalidated by the subsequent addition of another signature.
These features are described in detail in Section 5.4.5, “Digital Signature Structure” and Section 5.4.6, “Transformation”.
This profile supports the application to a UBL document of one or more signatures located outside of the document itself in some other resource.
It is important to note that externally signing a UBL document with a detached signature imposes no requirements on the UBL document itself. Such a signature, in any kind of signature container, can digitally sign the content of a UBL document regardless of whether this is reflected in the document.
If a user knows the document will have a detached conforming IETF/W3C XML digital
signature, the user MAY choose to signal in their UBL document that it is so signed. The
URI value
urn:oasis:names:specification:ubl:dsig:detached
is reserved to indicate that the detached signature is an IETF/W3C XML digital
signature. The URI
urn:oasis:names:specification:ubl:dsig:detached:xades
MAY be used as a value to signal when XAdES is in use. The value is used in the
<cbc:SignatureMethod>
child of
<cac:Signature>
.
If the location of the digital signature is known, the user MAY choose to indicate
the location in a <cbc:URI>
child element of a
<cac:ExternalReference>
child element of a
<cac:DigitalSignatureAttachment>
element.
Following is a complete example of a <cac:Signature>
business
object that might be found in a UBL instance:
<cac:Signature>
<cbc:ID>urn:oasis:names:specification:ubl:signature:Invoice</cbc:ID>
<cbc:SignatureMethod
>urn:oasis:names:specification:ubl:dsig:detached</cbc:SignatureMethod>
<cac:SignatoryParty>
<cac:PartyIdentification>
<cbc:ID>MyParty</cbc:ID>
</cac:PartyIdentification>
</cac:SignatoryParty>
<cac:DigitalSignatureAttachment>
<cac:ExternalReference>
<cbc:URI>sigFile.xml</cbc:URI>
</cac:ExternalReference>
</cac:DigitalSignatureAttachment>
</cac:Signature>
A document with multiple detached signatures is simply a document that is
co-signed. By the appropriate use of the <ds:Reference>
element
pointing to the UBL document from a detached signature file, all such signatures are
signing the content of the document but not each other. A countersigning document signature, on the other hand, signs signatures
already created for and external to or present in the document at the time it is
countersigned. A digital countersignature <ds:Signature>
, which
may be located internal to the UBL document or in an external file, includes
additional <ds:Reference>
elements, each pointing either to the
<ds:Signature>
element or
<ds:SignatureValue>
element child of the signature being
signed. In the first case, where the signature is detached, the
<ds:Reference>
element points to the external file for that
signature; in the second case, where the signature is enveloped, the
<ds:Reference>
element points to the Id= value of either the
<ds:Signature>
or <ds:SignatureValue>
element for that signature.
The XAdES specification supports an alternative countersignature approach where a
<ds:Signature>
element pointing to the countersigned
signature’s <ds:SignatureValue>
is embedded in the
<ds:Object>
of the countersigning signature. The inclusion of
an alternative method in this specification does not prohibit this approach.
See Section 5.5, “Digital Signature Examples” for a sample UBL Invoice that references a detached digital signature.
The content to be signed is addressed in the URI=
attribute of
<ds:Reference>
:
<ds:Reference URI="myInvoice.xml">
An option when using detached digital signatures is to express in XPath that address that qualifies all nodes in the referenced content to be included in the calculation of the digital signature hash. For a signature calculated for a document to remain valid, none of the signed information can change, nor can any information be added or removed from that portion of the document included in the hash calculation.
Consider the need to create a detached signature for a UBL file in which there already exists an enveloped signature. The following transformation element in a digital signature flexibly prevents the signature being invalidated by the subsequent addition of any signatures using the enveloped profile within the extension of the document being signed:
<Transform
Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<XPath xmlns:sig=
"urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2">
count(ancestor-or-self::sig:UBLDocumentSignatures)=0
</XPath>
</Transform>
A non-final transformation algorithm used in the detached signature signs all content outside of any enveloped signatures in the UBL document. When the UBL document does not already have an enveloped signature, one cannot be added without invalidating the detached signature. In effect, the entire document has been signed and cannot change, but the addition of the scaffolding for a signature constitutes a change. However, when the UBL document already has an enveloped signature, other signatures can be added without invalidating the detached signature, because the scaffolding doesn’t change when other signatures are added within the existing scaffolding; the non-final transformation algorithm does not include the signatures found in the existing scaffolding. When there is no preexisting enveloped signature, the entire document must be signed in the detached signature.
To sign only a portion of a UBL document, an appropriate [XPointer] address SHOULD be used because UBL business object elements do not have attributes of type ID. This requires XPointer awareness on the part of the digital signature tools being used.
UBL extensions enable user-defined additions to the standard schemas. The UBL schemas in this distribution are provided with a predefined standard extension for enveloped signatures that supports IETF/W3C Digital Signature profiles. These include advanced IETF/W3C XML digital signatures conforming to the ETSI XAdES specification [XAdES], thus satisfying EU legal requirements for electronically signed business documents.
This extension also serves as a case study for the creation of user-defined UBL extensions; see Section 3.5.4, “Notes For Extension Creators”. Further information on the UBL extension mechanism can be found in [Customization].
UBL’s implementation of XML digital signatures puts all the signatures relating
to a document in a single extension, which is engaged in validation by the
UBL-ExtensionContentDataType-2.2.xsd
schema module.
As is true for the UBL document schemas and common library, the UBL digital signature extension is modeled with three namespaces: one for the apex element (a parallel to the document schema), one for new aggregate constructs (a parallel to the common aggregate schema), and one for new basic constructs (a parallel to the common basic schema). See Figure 76, “UBL Schema Dependencies”.
The
urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2
namespace is used for the apex element, the
urn:oasis:names:specification:ubl:schema:xsd:SignatureAggregateComponents-2
namespace is used for new aggregate elements, and the
urn:oasis:names:specification:ubl:schema:xsd:SignatureBasicComponents-2
namespace is used for new basic elements. The IETF/W3C digital signature [xmldsig] standard namespace
http://www.w3.org/2000/09/xmldsig#
is also used in this extension.
These namespaces are bound to the sig:
, sac:
,
sbc:
and ds:
prefixes respectively, but any prefix
or even the default namespace can be used for any of these in an XML instance.
Schema fragments for the two XAdES namespaces
http://uri.etsi.org/01903/v1.3.2#
and
http://uri.etsi.org/01903/v1.4.1#
are included in UBL for the
convenience of users of the XAdES specification. There is no obligation to use the XAdES
extension in the IETF/W3C digital signature. The appropriate XSD fragments are imported
into the overall schema structure from the extension content data type schema fragment.
Changing UBL to support a future version of the XAdES schema fragments involves only
changing the import statements in the extension content data type schema fragment.
The table below lists the namespaces used for UBL digital signatures. The prefixes on the left are only documentary conventions; their choice is not constrained by XML.
Table 3. Namespaces for UBL Digital Signatures
Prefix | Namespace | Reference |
---|---|---|
ds | http://www.w3.org/2000/09/xmldsig# | [xmldsig] |
xades | http://uri.etsi.org/01903/v1.3.2# | [XAdES] |
ext | urn:oasis:names:specification:ubl:schema:
xsd:CommonExtensionComponents-2 | UBL extension namespace |
sig | urn:oasis:names:specification:ubl:schema:
xsd:CommonSignatureComponents-2 | UBL signature extension apex namespace |
sac | urn:oasis:names:specification:ubl:schema:
xsd:SignatureAggregateComponents-2 | UBL signature extension aggregate namespace |
sbc | urn:oasis:names:specification:ubl:schema:
xsd:SignatureBasicComponents-2 | UBL signature extension basic namespace |
This UBL extension is distinguished from other extensions and identified using the URI
urn:oasis:names:specification:ubl:dsig:enveloped
in the <ext:ExtensionURI>
element.
In addition to Enveloped signatures, Section 5.3.3, “Detached XML Signatures for UBL Documents” also provides methods to be used with Detached signatures (i.e., digital signatures that stand outside the document being signed). Detached signatures constitute an independent technique without associated UBL artefacts, but an example instance showing detached signatures is included in this package; see Section 5.5, “Digital Signature Examples”.
The UBL-ExtensionContentDataType-2.2.xsd
module links UBL
validation to all needed extensions by importing the apex schema fragment of each
extension vocabulary. The distribution version of this module supports IETF/W3C XML
digital signatures by declaring that the <ext:ExtensionContent>
element can contain elements from the UBL Digital Signature extension namespace.
Accordingly, a single <sig:UBLDocumentSignatures>
element is used as
the apex of all the document’s electronic signatures.
The <ext:ExtensionContent>
element alternatively allows any
other namespace apex element in order to allow other foreign extensions in the same
document.
The signature extension structure exists to contain one or more IETF/W3C standard
digital signature constructs. The UBL scaffolding for this extension starts with a
<ext:UBLExtension>
element with two children:
<ext:ExtensionURI>
(for extension distinction and
identification) and <ext:ExtensionContent>
(for containing the
extension information, in this case the actual signatures and supporting
information).
The signature extension Business Information Entities for UBL are contained in a single spreadsheet, provided here in two different formats.
An HTML rendition of the spreadsheet contents for the signature extension model also is provided:
One or more signature extensions in a given document may each contain one or more sets of signature information. The following instructions guide the proper use of this particular extension.
The standard scaffolding for a given signature extension begins with the
<ext:UBLExtension>
element. The extension’s role as a UBL
signature extension is indicated with a child <ext:ExtensionURI>
element with the
urn:oasis:names:specification:ubl:dsig:enveloped
value. The
urn:oasis:names:specification:ubl:dsig:enveloped:xades
value MAY be used to indicate the use of XAdES in the extension. Other extension
metadata elements defined in UBL are allowed to be included for the convenience of users
without changing the meaning or use of the extension.
<ext:UBLExtension> <ext:ExtensionURI >urn:oasis:names:specification:ubl:dsig:enveloped</ext:ExtensionURI> <ext:ExtensionContent>
All uses of the optional <cbc:ID>
metadata SHOULD be unique so
that each extension can be uniquely identified. The identifier used can be any value.
URNs beginning with
urn:oasis:names:specification:ubl:extension:
and ending with a number value are reserved for this purpose for the convenience of UBL
users. The value
urn:oasis:names:specification:ubl:extension:3
is an example of such a URN. As with all identifiers, each SHOULD be unique across all
identifier values in a given UBL instance.
The mandatory <ext:ExtensionContent>
element contains the UBL
signature scaffolding. The apex element of the UBL signature information is
<sig:UBLDocumentSignatures>
.
Each <sac:SignatureInformation>
aggregate is used to contain
the information related to a single IETF/W3C digital signature. Every signature added to
the extension is isolated under a separate
<sac:SignatureInformation>
aggregate element containing the
signature and its supporting information. As many of these aggregates can be in the
extension as is needed, each one containing the information for a single digital
extension.
<ext:ExtensionContent> <sig:UBLDocumentSignatures> <sac:SignatureInformation> <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
Note that three namespaces are used for signature information, in parallel with
UBL’s use of a document namespace, an aggregate namespace, and a basic namespace.
The apex element is in the
urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2
namespace, a parallel to a UBL document namespace. Signature-related aggregate entities
are in the
urn:oasis:names:specification:ubl:schema:xsd:SignatureAggregateComponents-2
namespace. Signature-related basic entities are in the
urn:oasis:names:specification:ubl:schema:xsd:SignatureBasicComponents-2
namespace. Accordingly, there are three W3C Schema fragments in the distribution
accommodating these three namespaces.
An aggregate MAY be identified for referencing purposes using the common library
<cbc:ID>
element. Such an identifier may be useful in workflow
scenarios where a particular signature needs to be identified external to the document,
but its use is not obligatory. The identifier used can be any value. URNs beginning with
urn:oasis:names:specification:ubl:signature:
and ending with a number value are reserved for this purpose for the convenience of UBL
users. The value
urn:oasis:names:specification:ubl:signature:3
is an example of such a URN. As with all identifiers, each SHOULD be unique across all
identifier values in a given UBL instance.
An aggregate MAY make reference to an existing <cac:Signature>
business object in the same UBL document, but this is not obligatory. When needed, the
<sbc:ReferencedSignatureID>
basic element is used to point to
the <cbc:ID>
identifier value of the referenced
<cac:Signature>
. The identifier used can be any value. URNs
beginning with
urn:oasis:names:specification:ubl:signature:
and ending with the local name of the parent of the signature business object,
optionally followed with a colon and number, are reserved for this purpose for the
convenience of UBL users. An example of such a URN is
urn:oasis:names:specification:ubl:signature:IssuerEndorsement
.
As with all identifier references, the referenced identifier SHOULD exist and SHOULD be
unique across all such identifier values in a given UBL instance.
See Section 5.3.2, “Enveloped XML Signatures in UBL Documents” for rules regarding common library UBL signature elements in the unextended portion of UBL documents that are being referenced by this element, together with an example of their use.
A single <ds:Signature>
element is a child of the aggregate.
It MAY be absent from the document, thus supporting workflow scenarios where the element
is added by a subsequent process after the UBL scaffolding is added by an earlier
process. However, the signature information is semantically incomplete without the
IETF/W3C-defined element. To support signatures countersigning this signature, this
element must use the Id=
attribute with a value unique among other
attributes of schema type ID
in the instance.
The following is a skeleton example of a single signature:
<ext:ExtensionContent>
<sig:UBLDocumentSignatures
xmlns:sig=
"urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2"
xmlns:sac=
"urn:oasis:names:specification:ubl:schema:xsd:SignatureAggregateComponents-2"
xmlns:sbc=
"urn:oasis:names:specification:ubl:schema:xsd:SignatureBasicComponents-2">
<sac:SignatureInformation>
<cbc:ID>urn:oasis:names:specification:ubl:signature:1</cbc:ID>
<sbc:ReferencedSignatureID
>urn:oasis:names:specification:ubl:signature:Invoice
</sbc:ReferencedSignatureID>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Id=...>
<ds:SignedInfo>
...
<ds:Reference URI=...>
...
<ds:Transform>
...
</ds:Transform>
...
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>
...
</ds:SignatureValue>
<ds:KeyInfo>
...
</ds:KeyInfo>
<ds:Object>
...
</ds:Object>
</ds:Signature>
</sac:SignatureInformation>
</sig:UBLDocumentSignatures>
</ext:ExtensionContent>
The XAdES specification contains all qualifying XAdES information in a single
<ds:Object>
element located as shown above. The UBL
distribution includes and engages XAdES schema fragments with versions 1.3.2 and 1.4.1
for the convenience of users who choose to use these versions of XAdES. Users of the
UBL signature extension are not obliged to use any XAdES extensions.
The content to be signed is indicated in the URI=
attribute of
<ds:Reference>
. Using the empty string indicates that the entire
document (i.e. the enveloping UBL instance) is what is being signed:
<ds:Reference URI="">
A requirement when using digital signatures is to express in XPath that address that qualifies all nodes in the referenced content to be included in the calculation of the digital signature hash. For a signature added to a document to remain valid, none of the information can change, nor can any information be added or removed from that portion of the document included in the hash calculation.
One of two such transformation expressions SHOULD be used in the UBL signature extension; users should choose the appropriate one to meet the objectives of adding the signature to the document. Adding non-signature information to the UBL document will invalidate all signatures already in the extension. The choice to make is whether to support additional signatures after adding the signature with the transformation expression.
The following transformation element in a digital signature flexibly prevents the signature from being invalidated by the subsequent addition of other signatures within the extension:
<Transform
Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<XPath xmlns:sig=
"urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2">
count(ancestor-or-self::sig:UBLDocumentSignatures |
here()/ancestor::sig:UBLDocumentSignatures[1]) >
count(ancestor-or-self::sig:UBLDocumentSignatures)
</XPath>
</Transform>
The following transformation element in a digital signature is inflexible and thus would be considered a “final” signature to be added to the document. Such a signature will be invalidated by the subsequent addition of other signatures to the document:
<Transform
Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<XPath xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
count(ancestor-or-self::ds:Signature |
here()/ancestor::ds:Signature[1]) >
count(ancestor-or-self::ds:Signature)
</XPath>
</Transform>
Multiple separate items of extra-document content (e.g., attachments) or embedded W3C
signature content can be included in the same signature by using sibling
<ds:Reference>
elements with other URI=
attribute values. For example, to countersign another signature in the same UBL document,
make a local reference to that signature’s unique identifier, as in:
<ds:Reference URI="#{Id attribute of ds:Signature}">
To digitally sign only a portion of standard UBL content and not the entire document
of UBL content, one uses an appropriate XPointer address for URI=
.
This requires XPointer awareness on the part of the digital signature tools being
used.
The
sample document
illustrates the embedding of three extensions in a single document, one of which is a
bona fide verifiable enveloped signature extension. A
xml/UBL-Invoice-2.0-Enveloped.xml
<cac:Signature>
element makes reference to the embedded
signature.
The
sample document
illustrates the placement of a detached digital signature outside of the UBL file. A
xml/UBL-Invoice-2.0-Detached.xml
<cac:Signature>
element makes reference to the external
signature.
The
instance is an
example of a bona fide verifiable digital signature of the
xml/UBL-Invoice-2.0-Detached-Signature.xml
instance.xml/UBL-Invoice-2.0-Detached.xml
The UBL 2.2 XSD schemas [XSD1][XSD2] are the only normative representations of the UBL 2.2 document types and library components for the purposes of XML document [XML] validation and conformance.
An XML document is considered conforming to UBL 2.2 when all are true that:
there are no violations of the XSD validation schema constraints when using one of the normative document schemas listed in Section 3.2, “UBL 2.2 Document Schemas”,
there are no violations of the XSD constraints on extension scaffolding and metadata described in Section 3.5, “Extension Methodology and Validation”, and
there are no content violations of the constraints listed in Section 4, “Additional Document Constraints”.
Additional explanatory information regarding conformance as applied to UBL documents and schemas and their subsets, and the distinction between UBL conformance and UBL compatibility, is described in detail in the UBL 2 Guidelines for Customization [Customization]. That document has no bearing or impact on the clauses of this subsection.
Claiming syntax conformance to the enveloped signature profile of UBL 2.2 requires the following:
a schema-valid UBL extension in which the UBL Signature apex element is the apex of the extension;
the <ext:Extension>
element is present in the UBL extension
and has either
urn:oasis:names:specification:ubl:dsig:enveloped
or
urn:oasis:names:specification:ubl:dsig:enveloped:xades
as its value;
the value in all uses of <sbc:ReferencedSignatureID>
, when
present, correlates to a corresponding <cbc:ID>
element of a
<cac:Signature>
element in the same instance; and
the <cbc:SignatureMethod>
element, when present, of
signature business objects whose signatures are in the UBL extension has either
urn:oasis:names:specification:ubl:dsig:enveloped
or
urn:oasis:names:specification:ubl:dsig:enveloped:xades
as its value.
Claiming processing conformance to the enveloped profile of UBL 2.2 requires the
conforming processing of all contained <ds:Signature>
elements per
[xmldsig].
Claiming syntax conformance to the detached profile of this specification requires
that the <cbc:SignatureMethod>
element, when present, of signature
business objects whose signatures are outside of the UBL document has either
urn:oasis:names:specification:ubl:dsig:detached
or
urn:oasis:names:specification:ubl:dsig:detached:xades
as its value.
When conformance to XAdES in a UBL extension is chosen, UBL 2.2 requires the valid expression and processing of the XAdES syntax found in an XMLDSig per [XAdES].
Online and downloadable versions of the latest OASIS release of this package are available from:
Online and downloadable versions of the latest ISO/IEC release of this package are available from:
The UBL 2.2 specification is published as a zip archive in the release directory. Unzipping this archive creates a directory named cs01-UBL-2.2 containing a master DocBook XML file (UBL-2.2.xml), a generated hypertext version of this file (UBL-2.2.html), a generated PDF version of this file (UBL-2.2.pdf), and a number of subdirectories. The files in these subdirectories, linked to from UBL-2.2.xml, UBL-2.2.html, and UBL-2.2.pdf, contain the various normative and informational pieces of the 2.2 release. A description of each subdirectory is given below. Note that while the UBL-2.2.xml file is the “original” of this specification, it may not be viewable in all currently available web browsers.
art/
Diagrams and illustrations used in this specification
cl/
Code list specification files; see Appendix E, UBL 2.2 Code Lists and Two-phase Validation (Non-Normative)
cva/
Artefacts expressing data type qualifications; see [CVA] in Section 1.3, “Normative References” and Figure D.1, “Data Type Qualification in UBL” in Appendix D, Data Type Qualifications in UBL (Non-Normative)
db/
DocBook stylesheets for viewing UBL-2.2.xml
mod/
Spreadsheets and HTML renderings of the UBL data models; see Appendix C, The UBL 2.2 Data Model (Non-Normative)
val/
Test harness for demonstrating UBL 2.2 two-phase validation; see Appendix E, UBL 2.2 Code Lists and Two-phase Validation (Non-Normative)
xml/
Sample UBL 2.2 instances; see Appendix F, UBL 2.2 Example Document Instances (Non-Normative)
xsd/
XSD schemas; see Section 3, “UBL 2.2 Schemas”
xsdrt/
“Runtime” XSD schemas; see Section 3, “UBL 2.2 Schemas”
UBL is a volunteer project of the international business community. Inquiries regarding UBL may be posted to the unmoderated public UBL-Dev list, archives for which are located at:
Subscriptions to UBL-Dev can be made through the OASIS list manager at:
OASIS provides an official community gathering place and information resource for UBL at:
The Wikipedia article for UBL has numerous related links:
UBL provides a vocabulary that, for many user communities, can be used “as is”. However, it is recognized that some user communities must address use cases whose requirements are not met by the UBL off-the-shelf solution. A separate OASIS Committee Specification known as the UBL 2 Guidelines for Customization [Customization] has been published to aid such users in developing custom solutions based on UBL.
The goal of UBL customization is to maintain a common understanding of the meaning of information being exchanged between specific implementations. The factors governing when to customize may be business-driven, technically driven, or both. The decision should be based on real-world needs balanced against perceived economic benefits.
For current UBL implementers, the most important thing to know about UBL 2.2 is that it is completely backward-compatible with UBL 2.0. In other words, any document that validates against a UBL 2.0 schema will validate against the UBL 2.2 version of that schema. The remaining differences relate mainly to the extended functionality that has been added to the 2.0 business processes in the areas of eTendering, sales reporting, utility statements, transport handling, and collaborative planning, forecasting, and replenishment (CPFR®).
Nonetheless, it would be unwise to simply overlay this UBL 2.2 release onto an existing installation, and the possible differences among existing installations are too large to allow a specific set of instructions to be provided for making the transition.
The brief history of UBL document types in the next section puts the new capabilities into context and may help users of existing UBL implementations decide whether to upgrade to 2.2.
New 2.2 users, on the other hand, can simply install 2.2 and rest assured that their software will interoperate with UBL documents generated by existing conforming UBL 2.0 installations. For more on the concept of conformance, see Section 6, “Conformance” and [Customization].
During deployment the presence of errors in the UBL normative components comes to the attention of the UBL Technical Committee. Some of these cannot be repaired without breaking backwards compatibility to previous versions of UBL. Accordingly, they are obliged to remain in UBL untouched to avoid ambiguity and to avoid problems with backwards compatibility.
The list of known errors that are not being changed is as follows:
the spelling of the BBIE named PartecipationPercent in the ABIE named ShareholderParty is incorrect
the spelling of the BBIE named FirstShipmentAvailibilityDate in the ABIE named PromotionalEvent is incorrect
the spelling of the BBIE named OccurenceLocation in the ABIE named Event is incorrect
at this time there are no ASBIEs associating the common library ABIE with the DEN “Performance Data Line. Details”
Since its first release as an OASIS Standard in 2004, UBL has experienced one major and now two minor version upgrades.
This appendix provides a description of the evolution of UBL.
Though apparently limited in scope, the eight document types provided in UBL 1.0 (2004) are applicable to a very large number of real-world use cases and have been widely deployed. These original 1.0 document types, later updated in UBL 2.0 and continued here in minor revisions, are Order, Order Response, Order Response Simple, Order Change, Order Cancellation, Despatch Advice, Receipt Advice, and Invoice. The figure below shows the original assumed process context for this most basic set of UBL document types. The scope of the process corresponds roughly to that of the UBL 2 Order, Fulfilment, and Traditional Billing processes described in the text (see Section 2.3.3.4, “Ordering (post-award)”, Section 2.3.5.1, “Logistics”, and Section 2.3.7.1.3, “Traditional Billing”).
Because versions of UBL beginning with 2.0 do not maintain backward compatibility with UBL 1.0 document instances (that is, UBL 1.0 document instances will not validate against schemas from UBL 2.0 and later), use of UBL 1.0 in new installations is deprecated. Suitably revised versions of the original eight document types continue all the business functionality of UBL 1.0 in later versions.
Adoption of UBL 1.0 following ratification as an OASIS standard in November 2004 resulted in major inputs of new business content beyond the eight basic order-to-invoice business documents specified in the original release. In particular, contributions from representatives of government procurement, taxation, and transportation agencies in Europe, Asia, and North America resulted in greatly expanded pre-order and post-invoice capabilities together with the addition of several transport-related document types, bringing the total number of document types in UBL 2.0 to 31.
The new release also featured changes in UBL’s use of XML schema methodology—most importantly, the adoption of global scoping for all element types—breaking backward compatibility with UBL 1.0 instances and therefore necessitating designation as a major revision, signified by incrementing the version number from 1.0 to 2.0 rather than 1.1. The original eight UBL 1.0 document types were revised to reflect these changes.
UBL 2.0 achieved OASIS Standardization in December 2006, and the package was updated and corrected in May 2008.
The 23 document types added in UBL 2.0 can be summarized as follows:
Added UBL 2.0 document types for sourcing: Catalogue, Catalogue Deletion, Catalogue Item Specification Update, Catalogue Pricing Update, Catalogue Request, Quotation, Request For Quotation
Added UBL 2.0 document types for fulfilment: Bill Of Lading, Certificate Of Origin, Forwarding Instructions, Packing List, Transportation Status, Waybill
Added UBL 2.0 document types for billing: Credit Note, Debit Note, Freight Invoice, Reminder, Self Billed Credit Note, Self Billed Invoice
Added UBL 2.0 document types for payment: Remittance Advice, Statement
Added UBL 2.0 supplementary document types: Application Response, Attached Document
Because it preserves backward compatibility with UBL 2.0, UBL 2.1 is technically a minor release, not a major one. However, it did add 34 new document types, bringing the total number of UBL business documents to 65.
Added UBL 2.1 document types for eTendering: Awarded Notification, Call For Tenders, Contract Award Notice, Contract Notice, Guarantee Certificate, Tender, Tender Receipt, Tenderer Qualification, Tenderer Qualification Response, Unawarded Notification
Added UBL 2.1 document types for Collaborative planning, forecasting, and replenishment: Exception Criteria, Exception Notification, Forecast, Forecast Revision, Item Information Request, Prior Information Notice, Trade Item Location Profile
Added UBL 2.1 document types for Vendor Managed Inventory: Instruction For Returns, Inventory Report, Product Activity, Retail Event, Stock Availability Report
Added UBL 2.1 document types for fulfilment: Fulfilment Cancellation
Added UBL 2.1 document types for Intermodal Freight Management: Goods Item Itinerary, Transport Execution Plan, Transport Execution Plan Request, Transport Progress Status, Transport Progress Status Request, Transport Service Description, Transport Service Description Request, Transportation Status, Transportation Status Request
Added UBL 2.1 document type for Utility billing: Utility Statement
Added UBL 2.1 supplementary document types: Document Status, Document Status Request
The Section 5, “UBL Digital Signatures” extension was added in UBL 2.1. This extension works as is also with UBL 2.0.
Details of the changes from UBL 2.0 to UBL 2.1 are found at http://docs.oasis-open.org/ubl/os-UBL-2.1/UBL-2.1.html#S-MINOR-REVISION-UBL-2.1
Because it preserves backward compatibility with UBL 2.1 and UBL 2.0, UBL 2.2 is technically a minor release, not a major one. However, it did add 16 new document types, bringing the total number of UBL business documents to 81.
Added UBL 2.2 document types for eTendering: Enquiry, Enquiry Response, Expression Of Interest Request, Expression Of Interest Response, Qualification Application Request, Qualification Application Response, Tender Contract, Tender Status, Tender Status Request, Tender Withdrawal, Unsubscribe From Procedure Request, Unsubscribe From Procedure Response
Added UBL 2.2 document types for transportation: Weight Statement
Added UBL 2.2 document types for business directories and agreements: Business Card, Digital Agreement, Digital Capability
The following two tables show the differences between the XML elements in UBL 2.1 and those in UBL 2.2.
All changes in 2.2 schemas are backward-compatible with valid UBL 2.1 and UBL 2.0 instances. Changes include the addition of new elements and attributes; changes in cardinality from 1 to 0..1 (i.e., making a formerly required element optional); changes in cardinality from 1 to 1..n or from 0..1 to 0..n (i.e., allowing an unlimited number of occurrences instead of just one); and corrections to Dictionary Entry Names (DENs).
The following table sums up the differences between the XML elements in the UBL 2.1 Common Library and those in the UBL 2.2 Common Library.
Table B.1. Changes to Library Elements Universal Business Language (UBL)
The following table sums up the differences between the XML elements in the UBL 2.1 document schemas and those in the UBL 2.2 document schemas.
Table B.2. Changes to Document Elements Universal Business Language (UBL)
As this is a very lengthy specification, this guidance to the reader reflects where UBL 2.2 has not changed substantially or substantively from UBL 2.1. Editorial changes that are related to grammar, spelling and turn of phrase are not enumerated.
Section 1, “Introduction” is unchanged from UBL 2.1 with the exception of citing the intended primary audiences for this specification.
Section 2, “UBL 2.2 Business Objects” has been augmented with an overall view diagram and information regarding a number of subject areas. No subject areas from UBL 2.1 have been removed from this section.
Section 3, “UBL 2.2 Schemas” has been augmented with a number of new document types and references to example instances. Section 3.3.4, “Extension Content Schemas” is modified for clarity regarding the user’s latitude when adding extensions.
Section 4, “Additional Document Constraints” is unchanged from UBL 2.1 with the exception of the addition of an explanatory comment regarding [IND5] and [IND6]. No constraints have been changed or added.
Section 5, “UBL Digital Signatures” is unchanged from UBL 2.1 with the exception of the importation of updated XAdES schema fragments in the extension content schema fragment.
Section 6, “Conformance” is unchanged from UBL 2.1 with the exception of calling out from an external document into this document the applicable information regarding schema and content conformance.
Appendix A, Release Notes (Non-Normative) is unchanged with the exception of adding UBL 2.2 to the section on upgrading, and enumerating the known errors in the document models.
Appendix B, Revision History (Non-Normative) summarizes the changes from UBL 2.0 to UBL 2.1 and details the changes from UBL 2.1 to UBL 2.2. Other sections are unchanged.
Appendix C, The UBL 2.2 Data Model (Non-Normative) is largely unchanged from UBL 2.1 with the exception of file references, line numbers and adding hyperlinks to the model reports. Some information previously found in separate sub-clauses has been consolidated into the first sub-clause. References to UML diagrams have been removed.
Appendix D, Data Type Qualifications in UBL (Non-Normative) is unchanged from UBL 2.1 with the exception of a revised diagram and referencing the UBL 2.1 release.
Appendix E, UBL 2.2 Code Lists and Two-phase Validation (Non-Normative) is unchanged from UBL 2.1 with the exception of the list of code lists.
Appendix F, UBL 2.2 Example Document Instances (Non-Normative) includes a revised list of example instances.
Appendix G, Alternative Representations of the UBL 2.2 Schemas (Non-Normative) is revised to reference only a free RELAX-NG tool with which to convert the normative UBL schemas into an alternative syntax.
Appendix H, The Open-edi reference model perspective of UBL (Non-Normative) is unchanged.
Appendix I, Acknowledgements (Non-Normative) is changed to reflect the active membership of the technical committee during the development of UBL 2.2.
As described in the OASIS UBL Naming and Design Rules [UBL-NDR] application of the OASIS Business Document Naming and Design Rules [BD-NDR], the UBL data model design follows the principles of the UN/CEFACT Core Components Technical Specification [CCTS]. The UBL data model is based on a library of reusable information items known as Business Information Entities (BIEs). Each business document defined by UBL is created by assembling items appropriate to that document type from the UBL BIE library. Further detail regarding BIEs is provided in Section C.4, “Business Information Entities”.
Historically, both the UBL common library of reusable components and the assembly models
for the individual UBL documents have been published as separate spreadsheets using a format
specifically developed for UBL business information modeling (this format is discussed
further below). Beginning with UBL 2.2, all of these models are published as separate
worksheets in a single spreadsheet. This spreadsheet is provided in both Open Document and
Microsoft Excel formats in mod/
subdirectory:
A machine-processable XML version of the spreadsheet contents for the entire UBL data model is provided in OASIS genericode [genericode] format:
Similar files for the UBL standardized signature extension also are in
mod/
subdirectory:
mod/UBL-Signature-Entities-2.2.ods
mod/UBL-Signature-Entities-2.2.xls
mod/UBL-Signature-Entities-2.2.gc
An HTML rendition of the spreadsheet contents for the entire UBL data model and of the signature extension data model are provided:
mod/summary/reports/All-UBL-2.2-Documents.html
mod/summary/reports/All-UBL-2.2-SignatureExtensionComponents.html
For links to the individual HTML reports for each of the document types, see the schema tables in Section 3.2, “UBL 2.2 Document Schemas”. These reports elide all of the library components that are not used by each document type and are far shorter than the “all documents” report.
For notes on the use of the HTML reports, see
Following the relevant sections of the OASIS Business Document Naming and Design Rules, the normative UBL schemas and non-normative OASIS Context/Value Association [CVA] file are generated from the machine-processable XML of the spreadsheet contents. From the CVA file and the genericode expressions of code list values, the data type qualifications XSLT stylesheet is generated.
The following diagram shows the conceptual relationships between the UBL data models on the left and validation artefacts (schemas and XSLT) on the right. Compare Figure 76, “UBL Schema Dependencies”.
The namespaces shown in the shaded boxes (with prefixes qdt:
,
udt:
, ccts-cct:
and ccts:
) exist
for the management of the schema components only and have no utility in UBL XML document
instances. Declaring unused namespaces in an XML instance is superfluous and does not impact
on conformance, but having them present may be confusing or misleading to the reader.
As noted above, UBL is based on a reusable library of Business Information Entities. In the current release, the Common Library contains more than two thousand of these individually defined data items.
In the language of [CCTS], UBL Business Information Items (BIEs) include BBIEs (“basic” individual pieces of information), ABIEs (aggregations of other BIEs), and ASBIEs (“associations” to ABIEs). Fuller explanations of these terms in the context of the CCTS framework will be found in the CCTS specification. For purposes of understanding UBL as a set of XML schemas, however, it may be useful to describe these terms employing concepts more familiar to XML users.
With the understanding that every XML document describes a logical tree of elements, the different kinds of Business Information Entities from which UBL documents are constructed may be described as follows:
UBL BBIEs (Basic Business Information Entities) are the
leaf nodes of every UBL document structure. These are ordinary data fields such as one would
expect to find in any business form, and they are realized in the schemas as individual XML
elements at the bottom level of the document tree with simple content representing amounts,
codes, quantities, and so on. All UBL BBIE elements (and only UBL BBIE elements) are members
of the UBL common basic components namespace, conventionally denoted in UBL schemas by the
cbc:
prefix. (Since all namespace prefixes in XML are assigned on a
per-instance basis according to namespace declarations in the individual instance, prefixes
such as cbc:
may be replaced with arbitrarily different namespace
prefixes in actual UBL documents.)
UBL ASBIEs (Association Business Information Entities)
are substructures of a UBL document. Children of ASBIEs may be BBIEs or other ASBIEs, never
ABIEs. All UBL ASBIEs (and only UBL ASBIEs) are members as
elements of the UBL common aggregate components namespace, denoted in UBL
schemas by the cac:
prefix.
UBL document ABIEs (Aggregate Business Information Entities) are the root nodes and top-level structures of UBL documents. Children of document ABIEs may be BBIEs or ASBIEs, never ABIEs. All UBL document ABIEs (and only UBL document ABIEs) are defined within individual namespaces specific to each document as both elements and types.
UBL library ABIEs (that is, all ABIEs except document
ABIEs) have a structural shape but are not concrete document structures; rather, they are
abstract structures or templates for ASBIEs, thus allowing the same structure to be reused
in multiple roles. Children of library ABIEs in the data structure can be BBIEs or ASBIEs,
never ABIEs. All library ABIEs must be realized as ASBIEs in order to actually exist as
elements in the UBL document tree. All UBL library ABIEs (and only UBL library ABIEs) are
realized as types in the UBL cac:
namespace.
This naming scheme inherited from CCTS may prove problematic for some UBL users. In particular, the CCTS terms “Association Business Information Entity” and “Aggregate Business Information Entity” do not well describe these two concepts as they are realized in XML. The problem word here is “association”, which correctly describes this relationship within a UML (Unified Modeling Language) framework but is perhaps better thought of in the UBL context as meaning that a particular ASBIE is “associated with” an abstract ABIE structure. For our purposes, it would have been better if ASBIEs had instead been called “Aggregate Business Information Entities” and ABIEs had instead been called “Structural Templates”. It may prove easiest for the UBL user to regard the terms ASBIE and ABIE as opaque labels and to ignore the historical expansions of these acronyms.
It can be seen from the above that the XML implementations of ASBIEs and library ABIEs
share the same cac:
namespace. In the schemas, library ABIEs are all
implemented as XML types, and ASBIEs are all implemented as XML elements. This is simply a
reflection of their different roles—library ABIEs as abstract classes or structural
templates (realized as XML types) and ASBIEs as concrete instantiations (realized as XML
elements derived from those types).
While the distinction between ABIEs/classes/types on the one hand and
ASBIEs/instantiations/elements on the other is clear enough, it should be noted that in some
cases an ASBIE does not qualify the name of the ABIE from which it is derived. In effect,
they have the same name. Some library ABIEs are used only in the form of an ASBIE having the
same name; for example, AddressLine
is a library ABIE that is only used
in the form of an ASBIE named AddressLine.
Some library ABIEs are
realized in some places as ASBIEs with the same name (where it is felt that the unqualified
name is sufficient) and elsewhere as ASBIEs with a name that is further qualified; for
example, the library ABIE Address
has numerous ASBIE realizations with
qualified names like LocationAddress
,
ApplicableAddress
, DespatchAddress
, and so on, but
it’s also seen as an ASBIE simply named Address
that’s
included in the library ABIEs FinancialInstitution
,
Branch
, Location
, and
ConsumptionPoint
. Some library ABIEs are never actually implemented as
ASBIEs with the same name; for example, only one ASBIE is associated with the library ABIE
ActivityDataLine
, and it has the qualified name
SupplyChainActivityDataLine
.
The UBL Common Aggregate Component schema declares an identically named element or
potential ASBIE for every library ABIE regardless of whether that element is used in a UBL
document schema to represent an ASBIE (these are among the long list of global element
declarations at the beginning of the CAC module). ABIEs are implemented as one or more
ASBIEs via XSD references to these elements farther down in the CAC schema module or in
individual document schema modules, which all import the CAC module. For example, the global
element AddressLine
declared in the CAC with the line
<xsd:element name="AddressLine" type="AddressLineType"/>
is implemented as an ASBIE with the same name in the declaration of the
Address
ABIE as follows:
<xsd:element ref="cac:AddressLine" minOccurs="0" maxOccurs="unbounded">
[...]
</xsd:element>
One consequence of this approach is that the list of global elements that begins the CAC
module contains elements that are in fact never used under those names in UBL 2.2. For
example, the element ActivityDataLine
mentioned above is used by
reference in creating the ASBIE SupplyChainActivityDataLine
, but it never
appears in the form of an ASBIE named ActivityDataLine
. Such unused ABIE
names remain available in the global element declarations for customizers and designers of
future additions to UBL.
The concepts described above can be illustrated by navigating the UBL data model to construct a trivial UBL Invoice instance.
We will start with a wrapper copied from an example in the xml/
directory of the UBL distribution (xml/UBL-Invoice-2.1-Example.xml
) that has the required XML namespace
declarations for the Invoice and for the common library components (“cac
”
for the aggregate (ABIE and ASBIE) components and “cbc
” for the basic
(BBIE) components):
<?xml version="1.0" encoding="UTF-8"?>
<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"
xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
[...]
</Invoice>
Now we will fill out this shell of an instance, completing the part in the square brackets by traversing the data model.
In addition to the aforementioned complete UBL data model spreadsheets and HTML rendering, when dealing with only a single document type there is an HTML rendition of that subset of the spreadsheet contents with only that content utilized by the one document type, such as for the Invoice:
Line 2 of the Invoice model
defines the document ABIE named Invoice
. The Component Type
column confirms that Invoice
is an ABIE, as also
indicated by the pink background in that row of the rendering.
Everything after Invoice
in the model ends up
as part of the schema, and the order seen here is the order in which these components will
appear in both the schema and any conforming instances of Invoice
. The BBIE children of
Invoice
are given first (white background), and then all the ASBIE children of Invoice
(green
background).
As shown in Cardinality column, most of these components are optional. The first
required field is ID
(line 7) and the second
is IssueDate
(line 10), so we can
write, for example,
<cbc:ID>123</cbc:ID>
<cbc:IssueDate>2011-09-22</cbc:IssueDate>
Next let’s add an optional InvoicePeriod
(line 25).
This is an ASBIE, implying that it has some kind of substructure, and it derives from the
generic ABIE called Period
(this is the
“Associated Object Class” referred to in a column of the same name). To find
this structure, we look for the Period
library ABIE in the
model report or in the Common Library worksheet of the UBL model spreadsheet.
Period
will
be found at line 1510 and seen to contain
a number of possible BBIE children, all of them optional; and the ASBIE InvoicePeriod
in Invoice
therefore has this
structure, too. From this one could conclude that instantiations of the Period
structure (there are
more than 50 of them in UBL) need not contain any of the seven optional BBIE elements
specified after line 1510, and indeed the corresponding
declaration of the complex type PeriodType
in the CAC schema
(xsd/common/UBL-CommonAggregateComponents-2.2.xsd
) shows that an empty
InvoicePeriod
element will pass XML validation; but UBL explicitly
prohibits such structures (see Section 4.4, “Empty Elements”). In UBL, as a normative
rule independent of schema constraints, every ASBIE must have at least one child (BBIE or
ASBIE) instantiated. In this case, therefore, one or more of the seven possible BBIE
children of InvoicePeriod
will need to appear in a UBL Invoice document for it to
be conforming to UBL in addition to the requirement that the document validate against the
Invoice
schema. If StartDate
and EndDate
(for exsample) are chosen for the content of InvoicePeriod
, the corresponding section of the sample instance might
then look like this:
<cac:InvoicePeriod>
<cbc:StartDate>2011-08-01</cbc:StartDate>
<cbc:EndDate>2011-08-31</cbc:EndDate>
</cac:InvoicePeriod>
Next in order in the Invoice come two required pieces, the ASBIEs AccountingSupplierParty
and AccountingCustomerParty
. As shown in Associated Object Class column
of the Invoice model, AccountingSupplierParty
(line 36) derives from the
SupplierParty
ABIE and AccountingCustomerParty
(line 37) derives from the
CustomerParty
ABIE. Checking in the Common Library, it is seen that
both SupplierParty
(line 2039 of the
Common Library) and CustomerParty
(line 562 of the
Common Library) can contain an ASBIE named Party
(as shown in lines
2043 and 566, respectively)
and that each Party
ASBIE is an instantiation of the Party
ABIE (line 1402). Therefore both parties have the same
structure (the BBIEs and ASBIEs following line 1402). Thus AccountingSupplierParty
and AccountingCustomerParty
share the information components common to
parties in general and differ in the information specific to suppliers and customers.
Parties commonly have a PartyName
(line 1410) that derives (the Associated Object
Class column) from the ABIE PartyName
(line 1441), which is a wrapper for the BBIE
Name
(line
1442). A conforming
piece of the document instance might therefore look like this:
<cac:AccountingSupplierParty>
<cac:Party>
<cac:PartyName>
<cbc:Name>Custom Cotter Pins</cbc:Name>
</cac:PartyName>
</cac:Party>
</cac:AccountingSupplierParty>
<cac:AccountingCustomerParty>
<cac:Party>
<cac:PartyName>
<cbc:Name>North American Veeblefetzer</cbc:Name>
</cac:PartyName>
</cac:Party>
</cac:AccountingCustomerParty>
Returning to the Invoice model, it is seen that the Invoice
must close with a
LegalMonetaryTotal
(line 54) and at least one InvoiceLine
(line 55). Taking
LegalMonetaryTotal
first, it is found in the Common Library to be
derived from MonetaryTotal
(line 1324), which
has a mandatory PayableAmount
BBIE. A corresponding example instance fragment might
be therefore be constructed as follows:
<cac:LegalMonetaryTotal>
<cbc:PayableAmount currencyID="CAD">100.00</cbc:PayableAmount>
</cac:LegalMonetaryTotal>
If the preceding explanation of Party
is understood, there
should be nothing problematic about the process of forming the example LegalMonetaryTotal
element shown above except the
currencyID
attribute on PayableAmount
, which does not appear explicitly in the model line for
that BBIE (line 1333). This is because UBL does not define the primitive data types upon which
the model is built; instead it uses standard data type definitions from [CCTS] and [XSD2]. In the case of PayableAmount
, the CCTS data type (the Data Type column) is
“Amount. Type” (the space is part of the name), and that type is defined in
[CCTS] itself (Table 8-1 of the CCTS 2.01 specification). There it will be
seen that “Amount. Type” has two supplementary “CCT Components”
called “Amount. Currency. Identifier” and “Currency. Code List Version.
Identifier”. In the XML realization of CCTS, supplementary components are expressed as
attributes, and the CCTS names “Amount. Currency. Identifier”and
“Currency. Code List Version. Identifier” are transformed into the XML attribute
names currencyID
and currencyCodeListVersionID
,
respectively. All of these CCTS-based types and attributes are declared in the CCTS Core
Component Type schema module:
Note that this schema module comes from UN/CEFACT, not UBL; that it does not implement
all of the supplementary components of core component types defined by [CCTS]; and that all of the attributes it does declare are defined as optional. In UBL, however,
the attributes currencyID
and mimeCode
are required,
not optional. In order to impose its own restrictions, therefore, and also to supply a full
set of supplementary component attributes, UBL provides an Unqualified Data Types module
that imports the CCTS module and then overrides those definitions as needed:
Further information about UBL data types can be found in Appendix D, Data Type Qualifications in UBL (Non-Normative). Note in particular Table D.2, “UBL Unqualified Data Types”, which includes a list of all the attributes associated with UBL unqualified data types. A reverse lookup of the implied occurrence of each attribute in the data models is provided in this summary report:
In the example fragment above, currencyID
has been used to label the
amount in Canadian dollars (CAD). As explained in Appendix E, UBL 2.2 Code Lists and Two-phase Validation (Non-Normative), the value
CAD
for this attribute is not specified in schemas to be checked using
XSD validation but will instead be found in separate OASIS genericode code list files in the
gc/
directory of the UBL distribution, which are engaged through a
separate XSLT-based process.
Using the same methodology, a sample InvoiceLine
can be constructed to complete the example as
follows:
<cac:InvoiceLine>
<cbc:ID>1</cbc:ID>
<cbc:LineExtensionAmount currencyID="CAD">100.00</cbc:LineExtensionAmount>
<cac:Item>
<cbc:Description>Cotter pin, MIL-SPEC</cbc:Description>
</cac:Item>
</cac:InvoiceLine>
The finished example can be found in
All UBL data types ultimately derive either from the UN/CEFACT Core Components Technical Specification [CCTS] Core Component Types (CCT) or from the W3C Schema specification [XSD2] itself; this derivation takes place in the UBL UDT module. The following table lists the CCTS 2.01 Core Component Types.
Table D.1. CCTS Unqualified Data Types
CCTS Data Type |
Definition |
---|---|
Amount. Type |
A number of monetary units specified in a currency where the unit of currency is explicit or implied. |
Binary Object. Type |
A set of finite-length sequences of binary octets. |
Code. Type |
A character string (letters, figures or symbols) that for brevity and/or language independence may be used to represent or replace a definitive value or text of an Attribute together with relevant supplementary information. |
Date Time. Type |
A particular point in the progression of time together with relevant supplementary information. |
Identifier. Type |
A character string to identify and distinguish uniquely, one instance of an object in an identification scheme from all other objects in the same scheme together with relevant supplementary information. |
Indicator. Type |
A list of two mutually exclusive Boolean values that express the only possible states of a Property. |
Measure. Type |
A numeric value determined by measuring an object along with the specified unit of measure. |
Numeric. Type |
Numeric information that is assigned or is determined by calculation, counting, or sequencing. It does not require a unit of quantity or unit of measure. |
Quantity. Type |
A counted number of non-monetary units possibly including fractions. |
Text. Type |
A character string (i.e. a finite set of characters) generally in the form of words of a language. |
The UBL unqualified data types include the CCTS unqualified data types (named according to
the UBL Naming and Design Rules) and a few others, as listed in the following table. Some of
these (GraphicType
, PictureType
,
SoundType
, VideoType
, and
ValueType
) are defined for completeness but not actually used in UBL
2.2.
The rightmost column of this table lists the UBL XML attributes that implement the CCTS supplementary components associated with each CCTS data type. It is important to be aware of these attributes, because they do not appear directly in the UBL data models but are logically implied by data type inheritance and do appear in the UBL XML schemas in accordance with the UBL Naming and Design Rules. As indicated here, a few of the most significant of these supplementary CCTS components become required XML attributes in UBL and will be required in any instance of an element derived from the corresponding type. See Section C.5, “Navigating the UBL Data Model” for an example of UBL attributes and a further discussion of this point. A reverse lookup of the implied occurrence of each attribute in the data models is provided in this summary report:
Table D.2. UBL Unqualified Data Types
UBL Unqualified Data Type |
Definition |
Attributes | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
AmountType |
A number of monetary units specified using a given unit of currency. |
| |||||||||
BinaryObjectType |
A set of finite-length sequences of binary octets. |
| |||||||||
GraphicType |
A diagram, graph, mathematical curve, or similar representation. |
| |||||||||
PictureType |
A diagram, graph, mathematical curve, or similar representation. |
| |||||||||
SoundType |
An audio representation. |
| |||||||||
VideoType |
A video representation. |
| |||||||||
CodeType |
A character string (letters, figures, or symbols) that for brevity and/or language independence may be used to represent or replace a definitive value or text of an attribute, together with relevant supplementary information. |
| |||||||||
DateTimeType |
A particular point in the progression of time, together with relevant supplementary information. |
| |||||||||
DateType |
One calendar day according the Gregorian calendar. |
| |||||||||
TimeType |
An instance of time that occurs every day. |
| |||||||||
IdentifierType |
A character string to identify and uniquely distinguish one instance of an object in an identification scheme from all other objects in the same scheme, together with relevant supplementary information. |
| |||||||||
IndicatorType |
A list of two mutually exclusive Boolean values that express the only possible states of a property. |
| |||||||||
MeasureType |
A numeric value determined by measuring an object using a specified unit of measure. |
| |||||||||
NumericType |
Numeric information that is assigned or is determined by calculation, counting, or sequencing. It does not require a unit of quantity or unit of measure. |
| |||||||||
ValueType |
Numeric information that is assigned or is determined by calculation, counting, or sequencing. It does not require a unit of quantity or unit of measure. |
| |||||||||
PercentType |
Numeric information that is assigned or is determined by calculation, counting, or sequencing and is expressed as a percentage. It does not require a unit of quantity or unit of measure. |
| |||||||||
RateType |
A numeric expression of a rate that is assigned or is determined by calculation, counting, or sequencing. It does not require a unit of quantity or unit of measure. |
| |||||||||
QuantityType |
A counted number of non-monetary units, possibly including a fractional part. |
| |||||||||
TextType |
A character string (i.e. a finite set of characters), generally in the form of words of a language. |
| |||||||||
NameType |
A character string that constitutes the distinctive designation of a person, place, thing, or concept. |
|
Some UBL BBIEs have data type qualifications based on the unqualified UBL types. These qualified types are all code types, and their definitions are the mechanism whereby a specific set of values is associated with each code.
UBL data type qualifications are expressed formally in an OASIS [CVA]
(Context/Value Association) file contained in the cva
directory of the 2.2
distribution.
The specification of the CVA mechanism and format is maintained by the OASIS Code List Representation Technical Committee.
A human-readable version is provided in an accompanying HTML file, which also serves as primary documentation on the UBL codes defined as qualified data types.
The val
directory contains the predefined CVA associations compiled
into an XSLT file, UBL-DefaultDTQ-2.2.xsl
, which is used in the recommended
two-phase validation process to perform a check of code list values. See Appendix E, UBL 2.2 Code Lists and Two-phase Validation (Non-Normative) for a description of this process.
The UBL revised approach to data type qualification contrasted to the UBL 2.0 approach is illustrated in the following diagram.
In UBL 2.0, the schema library of common basic components (basic business information entities or BBIEs, (A) in the diagram) is based on a combination of the data types defined in the file of UBL 2.0 qualified data types (C) and the unqualified data types defined in the UN/CEFACT Unqualified Data Type schema module Ver. 1.1 Rev A 16 Feb 2005 (K). The UBL 2.0 data type qualifications XSLT stylesheet (D) was used in the two-pass validation process, offering limitations on values such as code lists hardwired in the UN/CEFACT UDT definition.
In subsequent releases of UBL, the schema library of common basic components ((B) in the diagram) is based on a combination of the data types
defined in the file of UBL qualified data types (E) and the
data types defined in a file of UBL unqualified data types (M). The latter inherits the data type definitions in the UN/CEFACT CCTS CCT
schema module Ver. 1.1 050114
(N). The UBL data type qualifications CVA file (F) controls the creation of the UBL XSLT stylesheet (G) used in the two-pass validation process, offering both
limitations and extensions to values such as code lists. While this XSLT file,
UBL-2.x-DefaultDTQ.xsl
, can, when modified, apply to data type
qualifications in general (such as field length restrictions and value range restrictions),
the version of this file included in the UBL release contains only code list values linked to
the metadata of the applicable code list.
The two remaining boxes on the right in the diagram illustrate that users can add further data type qualifications if desired by preparing a custom CVA (H) and creating a custom XSLT file (J) to replace the default CVA and XSLT stylesheet provided in the UBL distribution.
Users intending to prepare a custom CVA should note that cva/UBL-DefaultDTQ-2.2.cva
contains
relative URIs that expect the UBL 2.0 code lists from the UBL 2.0 Update Package in a sibling
directory named os-UBL-2.0
, and the UBL 2.1 code lists from the UBL 2.1
distribution in a sibling directory named os-UBL-2.1
. This is irrelevant to
users of the pre-compiled val/UBL-DefaultDTQ-2.2.xsl
file contained in the UBL package, but users
wishing to create their own CVA file must first install the code lists of prior releases of
UBL 2.0. To properly install the update, first download and install the original UBL 2.0
release:
Then download and install the UBL 2.0 update:
Then download and install the UBL 2.1 release:
Complete installation instructions can be found in the each package. As indicated above,
the os-UBL-2.0/
and os-UBL-2.1/
directories thus created
must be siblings directories to the directory created by installing the UBL 2.2
package.
Code lists—the sets of codes such as “FR” and “USD” that are used to specify countries, currencies, and so on—play an important role in UBL, just as they do in all electronic business messaging schemes. By default, UBL uses several lists of standard codes published by agencies such as ISO and UN/CEFACT, as well as various codes that are specific to UBL.
In UBL 1.0 (2004), standard and default code list values were enumerated directly in the UBL schemas. This allowed all UBL 1.0 instances to be validated in a single pass using generic XML XSD (W3C Schema) processors. However, the specification of the default values directly in the schemas also made it difficult to modify the code lists to suit individual trading partner relationships and impossible to extend the list of allowable code list values while still using the standard UBL schemas as published by OASIS.
To give users maximum flexibility in configuring and updating UBL code lists without
changing the standard UBL schemas, UBL 2.0 introduced a two-phase validation model that has
now been fully implemented in UBL 2.1 and beyond. In the first phase, the UBL instance is
checked for structure and vocabulary against a standard UBL schema using a generic schema
validator (or custom-built software performing the same function). This is exactly the same
procedure used for validation in UBL 1.0, except that the schemas do not contain hardwired
code list values. Then in an added second validation (or verification) phase, code list
values in the instance are checked against values obtained from external code list
configuration files using an XSLT 1.0 processor driven by an XSLT 1.0 stylesheet. The
default code list values assumed by the UBL 2.2 specification are expressed as data type
qualifications in a file named UBL-2.2-DefaultDTQ.xsl
located in the
val
directory, as described in more detail below. Publicly available
tools were used to create the XSL file using the methodology described in the
“Validation” section of [Customization], the UBL
Guidelines for Customization.
Separating the checking of structure and vocabulary from the checking of code values allows trading partners to easily and precisely specify code list subsets and extensions and to apply them not just to individual UBL document types but also to particular elements and sub-trees within UBL document instances. Another way to say this is that the UBL code list methodology allows different versions of the same code list to be used in different document contexts. Thus, for example, a business in Canada might agree with a business in the United States to use a set of code list configuration files that allow the Buyer to be associated with either a U.S. state or a Canadian province but restrict the Seller to just U.S. states—that is, to apply a code list subset containing state and province codes in one place in a document instance and a different code list subset containing just state codes in another place in the instance.
To facilitate the processing of UBL instances using the two-phase method, an
“out-of-the-box” collection of open-source software that can be used to
demonstrate default validation of UBL documents is included in the val
directory of this release package. The validation harness assumes a Linux or Windows system
with no currently installed XML or XSLT processing software.
The Java Runtime Environment (JRE) 1.5 or later is required to use the programs in the
val
directory; JRE versions below 1.5 will throw an error from the
xjparse.jar
module used to invoke the Xerxes schema parser. If
necessary, download and install the latest JRE from the following location before
continuing:
To demonstrate UBL default validation:
Change to the val
directory.
From within that directory, enter the test command
test.bat
(Windows)
or
sh test.sh
(Linux)
The output, which is explained in the next section, should resemble the output shown in the following figure (the spacing has been manually adjusted to make the output easier to read).
From within the val
directory, you can now validate any UBL
document against the UBL schemas by executing commands of the form
validate
<ubl-schema>
<ubl-document>
where <ubl-document>
is
the path of a document to be validated and <ubl-schema>
is the path of the UBL schema for
that document type (Order, Invoice, etc.). For example, the scripts val/testsamples.bat
and val/testsamples.sh
show this process
being used to validate the sample XML instances in the xml
directory.
The test output displayed above demonstrates the default validation process with three
test files: a valid UBL Order (val/order-test-good.xml
); a UBL Order containing a bad (misspelled)
element (val/order-test-bad1.xml
); and a UBL Order that is schema-valid but
contains an illegal code list value (val/order-test-bad2.xml
). The file val/test.bat
(Windows) or val/test.sh
(Linux) is used to run the script val/validate.bat
or val/validate.sh
against each of the test
files.
The first run using order-test-good.xml
demonstrates both phases of
the default validation process running normally. In the first phase, a standard W3C Schema
(XSD) validator, Xerxes, is invoked from val/w3cschema.bat
(or val/w3cschema.sh
) to validate the specified UBL document
(.xml
) against the specified UBL runtime schema
(.xsd
). Since the input is a valid UBL Order, the output of the first
phase simply indicates that the file is valid against the given Order schema.
The second phase of validation uses a standard XSLT 1.0 engine, Saxon, to verify that
the values of various codes used in the UBL document to be tested (currency codes, packaging
types, etc.) are valid in terms of the default UBL code list values specified in
val/UBL-DefaultDTQ-2.2.xsl
. Here the output line “No code list
validation errors” from the validate
script indicates that the
Saxon run (invoked from val/xslt.bat
or
val/xslt.sh
) finds no illegal code
values in the document.
The second run shows what happens when the input document
(order-test-bad1.xml
) contains an actual structure or vocabulary error,
in this case due to omission of the trailing “e” from the element named
cbc:ChannelCode
. When the Xerxes parser encounters the malformed
element name, it emits the error message shown in the example, and the
validate
script reacts to a non-zero status code from
w3cschema.bat
(or w3cschema.sh
) by terminating the
validation process.
In the third run, the input document order-test-bad2.xml
is
structurally valid according to the Order schema, but it contains an illegal code list value
(the ChannelCode “AL” for cell phone has been
mistyped as “LA”). Thus it passes the first phase when tested against the schema
but fails the second phase when tested against val/UBL-DefaultDTQ-2.2.xsl
.
To summarize, input documents are checked in the first validation phase for correctness
of structure and vocabulary, using the constraints expressed in the appropriate UBL schema,
and then they are checked in the second phase for correctness of default code list values,
using the default constraints expressed in the XSLT file
UBL-DefaultDTQ-2.2.xsl
. This process is illustrated in the following
diagram.
It should be clear from the foregoing that the second phase of the default validation process can safely be omitted if it is considered unnecessary to check code list values. However, the reverse is not true; the second phase depends for correct operation on a prior check for structural validity, and therefore it will not give reliable results if run in the absence of the first (schema) validation phase.
The validation framework provided in the val
directory can be used to
implement code list changes, define variant code lists to fit specific trading partner
agreements, or associate different versions of the same code list with different parts of
the same UBL document by substituting a custom process (be it XSLT or some other language or
process) for the default UBL-DefaultDTQ-2.2.xsl
provided in the UBL 2.2
distribution. This allows extensive code list management without the need to change the
standard UBL 2.2 schemas. Schematron-based [SCH] techniques for
generating a custom XSLT file to take the place of UBL-DefaultDTQ-2.2.xsl
are explained in [CVA] and [Customization]. See also Appendix D, Data Type Qualifications in UBL (Non-Normative) for more about UBL data type
qualifications.
Since XSLT is a very powerful general-purpose XML transformation tool, the same framework can be extended to perform fairly sophisticated business rule checking by manually coding additional logic into the XSLT file that drives the second validation phase. Such modification is beyond the scope of the customization methodologies associated specifically with UBL, but a business analyst willing to perform XSLT programming can use this mechanism to offload a large proportion of input filtering from the back-end business application to a simpler input processing area. Additional XSLT scripts can be added to extract logical sub-trees of incoming UBL documents for allocation to different downstream processes and to perform even more extensive front-end processing.
Components of several freely available software distributions were used to create the
val
directory. Sources are given below so that these components can be
updated as later releases become available.
The file val/xjparse.jar
(renamed from xjparse-2.0.1.jar
) and the files in the
“val/lib
” directory are from the Xjparse 2.0.1
distribution at
The file val/saxon.jar
is from
the Saxon 6.5.5 distribution at
The file val/UBL-DefaultDTQ-2.2.xsl
was created using the Schematron [SCH] implementation of CVA files for validation at
The code lists included in the UBL 2.2 distribution use an OASIS Standard XML format for code lists called [genericode]. Each code list in the distribution is expressed as a genericode file. The code lists of UBL 2.0, UBL 2.1 and UBL 2.2 are incorporated into the default validation framework. Documentation on the UBL code lists is contained in a generated report file:
The code list files in UBL 2.2 are divided into two subdirectories,
cl/gc/default
and cl/gc/special-purpose
.
The code lists in the cl/gc/default
directory contain the default
code values represented in UBL-DefaultDTQ-2.2.xsl
. A second-phase code
list check using an unmodified version of the test setup from this distribution as
described above will verify all occurrences of code values from these lists against the
values specified in the cl/gc/default
directory. These are the code
lists expected to be used in most application contexts, but there is no obligation to use
them. The genericode files with corresponding “including deprecated” or “including
deleted” files have been culled of deprecated or deleted values in order to be used in
typical contexts. The files with entries no longer used are included for
completeness.
The xml
directory of this distribution contains a number of sample UBL
documents that can be used for testing purposes. The testsamples.bat
batch
file and the testsamples.sh
script in the val
directory
of this distribution can be used to demonstrate the validity of these examples in Windows and
Linux operating environments. See Appendix E, UBL 2.2 Code Lists and Two-phase Validation (Non-Normative) for a general discussion of UBL
validation methodology. For convenience, those examples that relate specifically to a
particular document type are linked from the description of that type in Section 3.2, “UBL 2.2 Document Schemas”.
Example instances containing extensions
Example instances related to signatures (see Section 5.5, “Digital Signature Examples”)
xml/UBL-Invoice-2.0-Detached-Signature.xml
xml/UBL-Invoice-2.0-Detached.xml
xml/UBL-Invoice-2.0-Enveloped.xml
Example instances with unconventional use of namespace bindings
xml/UBL-Invoice-2.0-Example-NS1.xml
xml/UBL-Invoice-2.0-Example-NS2.xml
xml/UBL-Invoice-2.0-Example-NS3.xml
xml/UBL-Invoice-2.0-Example-NS4.xml
Example instances of different versions of certain document types
UBL 2.2 continues the practice, adopted at the beginning of the UBL effort, of creating its normative XML specifications using W3C Schema (XSD) syntax. Alternative representations of the same content are technically non-normative, but are generated directly from the XSD and, with the exception of the UBL 2.2 digital signature extension (see Section 5.4, “UBL Extension for Enveloped XML Digital Signatures”), are intended to implement the same document instance constraints.
Regarding creating RELAX-NG [RELAX NG] expressions of the UBL document models, the free Trang tool found at https://github.com/relaxng/jing-trang is suitable for converting the UBL W3C Schema expressions into such expressions.
ISO/IEC 14662:2010 Information technology - Open-edi reference model [Open-edi] has been developed primarily in order to provide standards required for the inter-working of organizations through interconnected information technology systems. Open-edi lowers barriers to electronic data interchange by introducing standard business scenarios and the necessary services to support them.
The Open-edi Reference Model identifies the required standards for Open-edi and provides a reference for those standards by defining the basic concepts used to develop them.
Figure H.1, “Open-edi Overview” depicts two views to describe the relevant aspects of business transactions:
the Business Operational View (BOV);
the Functional Service View (FSV).
The BOV addresses the aspects of the semantics of business data in business transactions and associated data interchanges which apply to the business needs of Open-edi. The BOV-related standards are tools and rules by which users who understand the operating aspects of a business domain may create scenarios.
The FSV addresses the supporting services meeting the mechanistic needs of Open-edi, focusing on information technology aspects of functional capabilities, service interfaces, and protocols.
Using the concepts of Open-edi, UBL provides a generic Open-edi Configuration that an Open-edi Community may customize with their own requirements to implement their own Open-edi Configuration.
ISO/IEC 15944-20 Information technology - Business operational view - Linking business operational view to functional service view [BOV-FSV] presents the relationships linking the BOV with the FSV.
Figure H.2, “Open-edi Application” illustrates how the two normative deliverables of UBL, the semantic components and the XML schemas, align respectively with the BOV and FSV views of the Open-edi Reference Model.
Section 2, “UBL 2.2 Business Objects” provides the configuration’s BOV with a suite of normative business objects and associated semantics from which the community selects the semantic components needed in an information bundle. An information bundle describes the semantics of the recorded information to be exchanged between Open-edi Support Infrastructures servicing Decision Making Applications. The community’s configuration combines these information bundles with their identified scenarios and roles.
Section 3, “UBL 2.2 Schemas” and Section 4, “Additional Document Constraints” provides the configuration’s FSV with a set of corresponding normative XML schemas and document instance rules constraining the expression of the business objects in user data. One translates the semantic component values into a transfer syntax from the information bundle specification as a set of recorded information. It is the UBL XML syntax for the sets of recorded information defined by the information bundles that is exchanged between Parties.
Section 5, “UBL Digital Signatures” provides the configuration’s FSV with a normative schema fragment suitable for including profiles of advanced digital signatures in user data.
The other aspects of the implemented BOV and implemented FSV of the community’s Open-edi Configuration are governed by influences outside of the scope of UBL. Those aspects guide the community in customizing UBL to suit their requirements, as outlined in Section A.4, “UBL Customization”.
The OASIS UBL Technical Committee thanks Altova for its contribution of XML Spy licenses for use in UBL schema design; Sparx Systems for its contribution of Enterprise Architect licenses for use in developing UML content models and swim-lane diagrams; SyncroSoft for its contribution of oXygen licenses used in DocBook authoring of UBL documentation; RenderX for its contribution of XEP licenses used in generating PDF documents from DocBook originals; and Crane Softwrights for the generation of the summary reports.
The following persons and companies participated as members of the OASIS UBL Technical Committee during the years of its development (2013–2018).
Todd Albers, Federal Reserve Bank of Minneapolis |
Oriol Bausà Peris, Individual |
Kenneth Bengtsson, Alfa1lab |
Erlend Klakegg Bergheim, Difi-Agency for Public Management and eGov |
Peter Borresen, Document Engineering Services Limited |
Jon Bosak, Individual |
Roberto Cisternino, Individual |
Robin Cover, OASIS |
Kees Duvekot, RFS Holland Holding B.V. |
Martin Forsberg, Swedish Association of Local Authorities & Regions |
Cécile Guasch, Individual |
G. Ken Holman, Crane Softwrights Ltd. |
Ole Ellerbæk Madsen, DIGST Denmark |
Tim McGrath, Document Engineering Services Limited |
Levine Naidoo, Individual |
Andrew Schoka, Individual |
Enric Staromiejski Torregrosa, everis, S.L.U. |
Audun Vennesland, SINTEF |
UBL-2.2 Standards Track Work Product | Copyright © OASIS Open 2018. All rights reserved. | 22 March 2018 |