ISO 10303-214:2010(E)
An Item_version_relationship is a relationship between two Item_version objects.
Except if specified in a specialization of this object, this relationship does not involve inheritance of data between the two related objects .
The data associated with an Item_version_relationship are the following:
The description specifies additional information about the Item_version_relationship.
See item_version_relationship to multi_language_string for the application assertion.
The description need not be specified for a particular Item_version_relationship.
If present, there shall be exactly one object that defines the description for an Item_version_relationship.
The related specifies the second of the two Item_version objects related by the Item_version_relationship.
NOTE The semantics of this attribute are defined by the attribute relation_type.
See item_version_relationship to item_version for the application assertion.
The relating specifies the first of the two Item_version objects related by the Item_version_relationship.
NOTE The semantics of this attribute are defined by the attribute relation_type.
See item_version_relationship to item_version for the application assertion.
The relation_type specifies the meaning of the relationship.
Where applicable the following values shall be used:
EXAMPLE 'Rev. 1.1' and 'rev. 1.2' are subordinates of 'version 1'.
NOTE 1 The different organizational contexts can be represented by different general organizational data associations.
NOTE 2 The concept of Alias_identification may also be used for Item_version. However, Item_version_relationship shall be used if the related Item_version corresponds to an item at the supplier's site and if a distinction of additional information such as name or organizational information is needed.
EXAMPLE Usually, items that are provided by suppliers have at the supplier's site an id different from the one at the contractor's site: an item that is identified in a company by the identifier 'C425' and the version id 'V2.0' may correspond to the item that the supplier identifies as '2X45' with the version id 'V3.2'.
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