Note: There is a newer version of this specification see VEC 2.0.1

A WireGrouping is the definition of a multi core wire in its usage. The elements of a WireGrouping are well defined wires (e.g. with a part number). The grouping itself is only created in its concrete usage. The most common use case is the individual definition of unshielded twisted pair wires without creating the full combinatorics of every possible core / insulation / twist combination in a part master data system (and by this creating part numbers for all of them). However, there are other use cases as well.

A WireGrouping groups the relatedWireElementReferences on an equal level containedWireGroupings are on a lower level. So, in order to create something like a shielded twisted pair, one WireGrouping "A" that references two WireElementReferences is required to represent the twisted pair and another WireGrouping "B" that contains WireGrouping "A" and references the "shield wire element".

 The referenced WireGroupSpecification defines the handling of the WireGrouping during its assembly (e.g. twist).

General Information

Attribute Value
Owner instancing_electrical_parts
Applied Stereotype
Base Classifier ExtendableElement
Is Abstract false
Derived Classifiers


Name Type Mult. Description Owning Classifier
identification String 1

Specifies a unique identification of the WireGrouping. The identification is guaranteed to be unique within the WireGroupingSpecification.


Outgoing Relations

Type Role Mult. Mult. Description
WireGrouping containedWireGroupings 0..* 0..1

References the WireGroupings that are contained in this WireGrouping.

WireElementReference relatedWireElementReference 0..* 0..*

References the concrete wire elements (WireElementReference) that are grouped by the WireGrouping.

ConnectionGroup connectionGroup 0..*

References the ConnectionGroup that is realized by this WireGrouping.

WireGroupSpecification wireGroupSpecification 0..1 0..*

References the WireGroupSpecification that applies to the WireGrouping.

Incoming Relations

Type Mult. Role Mult. Description
WireGrouping 0..1 containedWireGroupings 0..*

References the WireGroupings that are contained in this WireGrouping.

WireGroupingSpecification 0..1 wireGrouping 1..* Specifies the WireGroupings described by the WireGroupingSpecification.