Template: PartAssembly

This section specifies the template PartAssembly.

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

The specification comprises the following sections:

Section Description provides a description of the template;
Section Template Block specifies the SysML Block that represents the template;
Section Template Properties specifies the properties, i.e. the Part, Reference and Value properties of the templates SysML Block;
Section Template Output Ports specifies the Output Ports of the templates SysML Block. These bind to the templates and PLCS PSM objects instantiated by the PartAssembly template as described in section Template Parametric Diagram;
Section Template Constraints specifies the constraints on PLCS PSM objects instantiated by the PartAssembly template;
Section Template Parametric Diagram specifies the templates and PLCS PSM objects instantiated by the PartAssembly template;
Section Instantiated blocks specifies the templates and PLCS PSM objects instantiated by the PartAssembly template and bound to private parts of the template;
Section Default instances species the instances that have been instantiated in the template. These are used to set the default value of blocks.
Section Constraint blocks identifies the constraint blocks that have been specified in this template;
Section Example data provides example XML data sets that have been instantiated in accordance with this template.

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

Description

The PartAssembly template describes how to represent the parent/child relationship betwen design parts (a design assembly).

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

../../../../../data/PLCS/psm_model/images/SysML_Block_Definition_Diagram__Diagrams__Assembly_structure.png

Figure 1 - Assembly structure

Related Templates

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

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

Template Block

Figure 2 shows the SysML Block that represents the template. The Block is an abstraction representing a pattern of templates and PLCS PSM 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 constraints shown on the template's SysML Block are described in the template constraints section.

Figure 2 - Template block definition diagram for PartAssembly

Template Properties

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

References:

parent [1] (Template: OASIS:Part)

The parent Part

child [1] (Template: OASIS:Part)

The child Part

effectivityRole [0..1] (Template: OASIS:Classifier)

The role of the effectivity

Parts:

locationIndicators [0..*] (Template: OASIS:Identification)

The collection of Identifiers that identifies the usage of the child in the assembly in a diagram, list, chart, or on a physical piece of equipment.

quantity [0..1] (Block: Ap239Ap233Psm:ValueWithUnit)

The amount of the child in the assembly.

Values:

startEffectivityDate [0..1] (Block: Ap239Ap233Psm:DateTimeString)

The date when the assembly relationship starts to be valid

endEffectivityDate [0..1] (Block: Ap239Ap233Psm:DateTimeString)

The date when the assembly relationship ends to be valid

Template Output Ports

The following output ports are defined for this template:

assembly (Block: Ap239Ap233Psm:NextAssemblyViewUsage)

Enables the Block: Ap239Ap233Psm:NextAssemblyViewUsage instantiated by this template to be referenced when the template is used.

Template constraints

The following constraints are defined for this template:

Constraint: viewsMustBeProvided

Specification: (English)

parent.ViewDefinitionContext not null and child.ViewDefinitionContext not null

Template Parametric diagram

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

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 the Parametric Diagram.

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

Figure 3 - Parametric diagram for PartAssembly

Instantiated Blocks

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:nau [1] (Block: Ap239Ap233Psm:NextAssemblyViewUsage)

Private Part Property:classifyNAU [1] (Template: OASIS:Classifier)

Private Reference Property:classPartAssembly [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:de [0..1] (Template: OASIS:DatedEffectivity)

Default instances

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

Figure 3 - Model instance diagram for PartAssembly

Instances

The following instances have been created:

classPartAssembly instance of Block: Ap239Ap233Psm:ExternalOwlClass.

ExternalOwlClass.class = http://docs.oasis-open.org/plcs/ns/plcslib/v1.0/data/contexts/OASIS/refdata/plcs-rdl#Part_assembly

Constraint Blocks

There are no constraint blocks defined in this template.

Example data

No example data sets have been provided for this DEX.