Note: There is a newer version of this specification see VEC 2.1.0

Abstract super-class for physical objects (e.g. a Terminal), virtual objects (e.g. a 150% Harness) as well as documents (e.g. a wiring diagram). In difference to AP 212 the VEC makes it only possible to describe/exchange information about Versions since Master-Objects cannot exist without one or more Versions.

General Information

Attribute Value
Owner core
Applied Stereotype
Base Classifier ExtendableElement
Is Abstract true
Derived Classifiers DocumentVersion, PartVersion


Name Type Mult. Description Owning Classifier
abbreviation LocalizedString 0..*

Room for a short name of the Item. In case of a document the attribute is wanted to contain its title.

description AbstractLocalizedString 0..*

Room for additional, human readable information about the ItemVersion. e.g. Buchsengehäuse 26-polig

companyName String 1

Defines the publishing company of the ItemVersion. The companyName is part of the main identifier of an ItemVersion together with the corresponding number (partNumber or documentNumber) and version (partVersion or documentVersion).

processingInstruction Instruction 0..*

Processing instructions for the application of the part or the document.


Outgoing Relations

Other End This End General
Role Type Mult. Agg. Unique Ordered Mult. Description
creation Creation 0..1 Y Y N 1 Specifies the information about the creation of the ItemVersion.
copyrightInformation CopyrightInformation 0..1 N Y N 0..*

References the CopyrightInformation that is in effect for this ItemVersion. If no CopyrightInformation is referenced by the ItemVersion, the CopyrightInformation that is referenced by the VecContent (if defined) shall be considered as in effect for this ItemVersion.

approval Approval 0..* Y Y N 1 Specifies the approval information of the ItemVersion.
contract Contract 0..* N Y N 0..* References the contracts that apply to an ItemVersion.
changeDescription ChangeDescription 0..* Y Y N 0..1 Specifies the change history of the ItemVersion.

Incoming Relations

This End Other End General
Role Mult. Agg. Unique Ordered Type Mult. Description
item 2..* N Y N ItemEquivalence 0..*

References all ItemVersion that are considered to be equivalent by the ItemEquivalence. A single ItemEquivalence shall only reference ItemVersions of the same class (either DocumentVersions or PartVersions).

predecessorVersion 1 N Y N ItemHistoryEntry 0..* References the ItemVersion that is the predecessor in the ItemHistoryEntry.
successorVersion 1 N Y N ItemHistoryEntry 0..* References the ItemVersion that is the successor in the ItemHistoryEntry.
validVersions 0..* N Y N BaselineSpecification 0..*

References the ItemVersions that are the content of the baseline.