Once the type of relationship between two media items is identified by using the descriptor instantiationRelationType, the companion descriptor instantiationRelationIdentifier is used to provide a name, locator, accession, identification number or ID where the related item can be obtained or found. The cross reference uses a unique identifier. The relationship could also describe a multi-part instantiation, such as a multi-disk DVD.
XPATH LOCATION:
/ pbcoreDescriptionDocument / pbcoreInstantiation / instantiationRelation / instantiationRelationIdentifier
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/pbcoreInstantiation/instantiationRelation/instantiationRelationType
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationRelation/instantiationRelationIdentifier
EXAMPLES:
-
<instantiationRelation> <instantiationRelationType source="PBCore relationType" ref="http://metadataregistry.org/concept/list/vocabulary_id/161.html">Derived from</instantiationRelationType> <instantiationRelationIdentifier>Barcode238898</instantiationRelationIdentifier> </instantiationRelation> -
<instantiationRelation> <instantiationRelationType source="PBCore relationType" ref= "http://metadataregistry.org/conceptprop/list/concept_id/3093.html">Is Part Of</instantiationRelationType> <instantiationRelationIdentifier>FRON001108</instantiationRelationIdentifier> </instantiationRelation>
