Once the type of relationship between two media items is identified by using the descriptor pbcoreRelationType, the companion descriptor pbcoreRelationIdentifier is used to provide a name, locator, accession number, identification number or ID where the related item can be obtained or found. The cross reference uses a unique identifier. The relationship could also reflect another relationship type, such as an episode in a series or a program segment.
XPATH LOCATION:
/ pbcoreDescriptionDocument / pbcoreRelation / pbcoreRelationIdentifier
USAGE RULES:
Occurs:
1 time only
May Contain:
4 or less optional attributes, specific:
- source (text, may be empty)
- ref (text, may be empty)
- version (text, may be empty)
- annotation (text, may be empty)
Contained by:
Contained with:
[Any elements used MUST appear in this relative order]
- /pbcoreDescriptionDocument/pbcoreRelation/pbcoreRelationType
- /pbcoreDescriptionDocument/pbcoreRelation/pbcoreRelationIdentifier
EXAMPLES:
-
<pbcoreRelation> <pbcoreRelationType>Is Part Of</pbcoreRelationType> <pbcoreRelationIdentifier>NOVA</pbcoreRelationIdentifier> </pbcoreRelation> -
<pbcoreRelation> <pbcoreRelationType>Is Part Of</pbcoreRelationType> <pbcoreRelationIdentifier>8796896</pbcoreRelationIdentifier> </pbcoreRelation>
