Note: There is a newer version of this specification see VEC 2.1.0

An OccurrenceOrUsage is an abstract appearance of a part in the harness. This can either be a concrete part (with a part number a.s.o) or the description (specification / requirements) of a part that should be used at that position. In the first case it would be a PartOccurrence in the second case a PartUsage.

General Information

Attribute Value
Owner instancing
Applied Stereotype
Base Classifier ConfigurableElement
Is Abstract true
Derived Classifiers PartOccurrence, PartUsage


Name Type Mult. Description Owning Classifier
identification String 1

Specifies a unique identification of the OccurrenceOrUsage. The identification is guaranteed to be unique within the context. Over all VEC-documents an OccurrenceOrUsage-instance can be trusted to be the same if the context-instance is the same and the identification of the OccurrenceOrUsage is the same.

aliasId AliasIdentification 0..*

Room to specify additional identifiers for the OccurrenceOrUsage.

abbreviation LocalizedString 0..*

Specifies an abbreviation of the OccurrenceOrUsage. Normally this a human readable short name.

description AbstractLocalizedString 0..*

Specifies additional, human readable information about the OccurrenceOrUsage.


Outgoing Relations

Type Role Mult. Mult. Description
UsageNode realizedUsageNode 0..1 0..*

References the UsageNode that is realized by this OccurrenceOrUsage.

Instruction installationInstruction 0..* 0..1 Room to specify InstallationInstruction(s) for the OccurrenceOrUsage.
Role role 0..* 0..1

Specifies the different roles of the OccurrenceOrUsage.

Incoming Relations

Type Mult. Role Mult. Description
OccurrenceOrUsageViewItem3D 0..* occurrenceOrUsage 0..1

Specifies the OccurrenceOrUsage which is represented by the view item.

OccurrenceOrUsageViewItem2D 0..* occurrenceOrUsage 0..1 Specifies the OccurrenceOrUsage which is represented by the view item.
PartWithSubComponentsRole 0..* subComponent 1..*

References the subcomponents that belong to this instance of a PartWithSubComponents.