Template: OASIS:Baseline

This section specifies the template Baseline.

The specification comprises a SysML Block that represents the template and an associated Parametric Diagram that defines the templates and PLCS PSMTemplate objects instantiated by the Baseline template.

The specification comprises the following sections:

NOTE    An explanation of a template and its specification is provided in the Template overview

The Baseline template describes how to represent the concept of baseline. It covers the minimum requirements to represent a Baseline BaselineVersion (with a status) BaselineViewDefinition and BaselineMember to items.

The SysML Block Definition diagram in Figure 1 shows how a Collection is represented in the PLCS PSM.

Figure 1 -  Collection model

No templates have been explicitly defined as being related to the Baseline template.

NOTE    The Baseline template may make reference to other templates as part of the Parametric Diagram. These are not listed here.

Figure 2 shows the SysML Block that represents the template. The Block is an abstraction representing a pattern of templates and PLCS PSMTemplate objects.

The properties, i.e. the SysML Block Part, Reference and Value properties, of the template's SysML Block are described in the Template Properties section.

The output ports shown on the template's SysML Block are described in the template output ports section.

The SysML Parametric diagrams for the template Block are shown in template parametric diagram section.

Figure 2 -  Template block definition diagram for Baseline

The following SysML Part, Reference, and Value properties are defined for this template:

References:
target [0..1] (Block: Ap239Ap233Psm:CollectionAssignmentSelect)
The item to which the baseline is created for
view [0..1] (Template: OASIS:ViewDefinitionContext)
The Domain/lifecycle stage the baseline is defined for
items [0..*] (Block: Ap239Ap233Psm:CollectionMemberSelect)
The items of the baseline
status [1] (Block: Ap239Ap233Psm:ProxyItemSelect)
The status of the baseline version
Parts:
ids [1..*] (Template: OASIS:Identification)
The identifiers of the baseline.
The reference data used in Template: OASIS:Identification is restricted as follows:
RDL constraint 1:
The id must be classified as a Collection_identification_code or a subclass thereof.
The reference data for:
OASIS:Identification.role -> ExternalOwlClass.class
is restricted to the following class or a subclass:
descriptions [0..*] (Template: OASIS:Descriptor)
The descriptions of the baseline
versionId [1] (Template: OASIS:Identification)
The identifier of the baseline version
The reference data used in Template: OASIS:Identification is restricted as follows:
RDL constraint 1:
The identifier must be a version identifier.
The reference data for:
OASIS:Identification.role -> ExternalOwlClass.class
is restricted to the following class or a subclass:
classifications [0..*] (Template: OASIS:Classifier)
The classifications for the baseline

The following output ports are defined for this template:

baseline (Block: Ap239Ap233Psm:Collection)
Enables the Block: Ap239Ap233Psm:Collection instantiated by this template to be referenced when the template is used.
baselineVersion (Block: Ap239Ap233Psm:CollectionVersion)
Enables the Block: Ap239Ap233Psm:CollectionVersion instantiated by this template to be referenced when the template is used.
definition (Block: Ap239Ap233Psm:CollectionViewDefinition)
Enables the Block: Ap239Ap233Psm:CollectionViewDefinition instantiated by this template to be referenced when the template is used.

There are no constraints defined for this template.

This section describes the template's Parametric Diagram. The diagram details the pattern of templates and PLCS PSMTemplate objects that are required to represent the template Baseline.

The public properties, i.e. those visible in the template's SysML block (See Figure 2) are shown on the left of a Parametric Diagram.

NOTE    Restrictions on the reference data to be set on the public properties is defined in the Template Properties section.

The output ports are shown on the right of a Parametric Diagram.

PLCS PSM objects are shaded khaki and Templates are shaded light green in a Parametric Diagram.

Figure 3 -  Parametric diagram for Baseline

The following blocks are instantiated by this template and bound to private parts of the template as shown in the Parametric Diagram section:

Private Part Property:theBaseline [1] (Template: OASIS:Collection)
Private Reference Property:clsBaseline [1] (Block: Ap239Ap233Psm:ExternalOwlClass)

The following constraint, normally a uniqueness constraint, is applicable when instantiating the ExternalOwlClass:

rule.Ap239Ap233Psm.ExternalOwlClass.ur1
Constraint: ur1
Specification: (OCL2.0)
ExternalOwlClass::allInstances()->isUnique(class)
Private Part Property:state [1] (Template: OASIS:StateAssertion)
Private Part Property:statusAsg [1] (Block: Ap239Ap233Psm:StateAssignment)
Private Part Property:clsBaselineAsg [1] (Template: OASIS:Classifier)

Figure 3 shows the instances that have been instantiated in the template. These are used to set the default value of blocks.

Instance diagram
Figure 3 -  Model instance diagram for Baseline

The following instances have been created:

classBaseline instance of Block: Ap239Ap233Psm:ExternalOwlClass.

This or a sub-class of this must be used for the indicating a baseline

There are no constraint blocks defined in this template.

No example data sets have been provided for this Template.