Note: There is a newer version of this specification see VEC 2.1.0
A PartSubstitutionSpecification defines a set of PartVersions that can be used alternatively, due to an incomplete specification for the 150% product description. For a concrete wiring harness only on valid PartVersion remains. The selection logic for valid PartVersions is not included in the VEC.
A PartSubstitutionSpecification can be used for example tubes or ring terminals, where a part of the specification is known at design time, but not yet the complete specification. For tubes for example the tube diameter is not known at design time, since it depends on the bundle diameter of a specific configuration.
Specifies a unique identification of the specification. The identification is guaranteed to be unique within the document containing the specification. Over all VEC-documents a Specification-instance can be trusted to be identical if the DocumentVersion-instance is the same (see DocumentVersion) and the identification of the Specification is the same.
Specifies additional, human readable information about the specification.