> PropertyitemType

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Property : cld:itemType

This document is part of the DCMI Collection Description Working Group Wiki.

IMPORTANT: Do not cite materials in this Wiki other than for the purposes of collaborating on document creation. This Wiki is intended to be used to work on draft copies of documents. Finished documents will be published, in a persistent and citable form, on the dublincore.org Web site (or elsewhere in some cases).

This is a draft document, currently being worked on by the DCMI Collection Description Working Group. Comments should be sent to the DC-COLLECTIONS@jiscmail.ac.uk mailing list or direct to the authors.

Description of Property

Examples

@prefix coll: <http://example.org/colls/> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix cld: <http://example.org/cld/terms#> .
DescriptionSet (
  Description (
    ResourceURI ( coll:c1234 )
    Statement (
      PropertyURI ( dc:title )
      ValueString ( "My Digital Photograph and Video Collection"
        Language ( en-GB )
      )
    )
    Statement (
      PropertyURI ( cld:itemType )
      VocabularyEncodingSchemeURI ( dcterms:DCMIType )
      ValueString ( "MovingImage")
    )
    Statement (
      PropertyURI ( cld:itemType )
      VocabularyEncodingSchemeURI ( dcterms:DCMIType )
      ValueString ( "StillImage")
    )
  )
)

@prefix coll: <http://example.org/colls/> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix cld: <http://example.org/cld/terms#> .
@prefix other: <http://example.org/classes/> .
DescriptionSet (
  Description (
    ResourceURI ( coll:c5678 )
    Statement (
      PropertyURI ( dc:title )
      ValueString ( "My ePrint Collection"
        Language ( en-GB )
      )
    )
    Statement (
      PropertyURI ( cld:itemType )
      VocabularyEncodingSchemeURI ( other:EPrintType )
      ValueString ( "Journal Article")
    )
    Statement (
      PropertyURI ( cld:itemType )
      VocabularyEncodingSchemeURI ( other:EPrintType )
      ValueString ( "Conference Presentation")
    )
  )
)

Supporting Information

Why Needed:	It is a functional requirement that the DC CD AP should allow applications to search for collections that include items of a specified nature/genre and/or to group lists of collections according to the nature/genre of items within the collection. The requirement might possibly be met using the existing dc:type property, but that approach requires the creation of new sets of classes parallelling the classes in existing (item) type vocabularies e.g. the DCMI Type Vocabulary provides a class dcmitype:Text, but to use the dc:type property to represent the fact that a collection was a collection of items of type dcmitype:Text requires a new class. The use of the cld:itemType property means that the existing classes in (item) type vocabularies can be used. The proposal does not infringe the "one-to-one" rule because it is not seeking to capture the type of some specific item; it is based on treating the fact that a collection includes some (unspecified) items of a named type as an attribute of the collection.
Related DCMI Terms:	The DCMI property dc:type takes as its value the nature or genre of the subject resource.
Related non-DCMI Terms:
About the Proposers:	The term is proposed by the Dublin Core Collection Description Working Group. One of the primary aims of the WG is the development of a Dublin Core Application Profile (DCAP) for collection-level description, i.e. for the description of a collection as a resource, rather than the description of the individual items that make up that collection. Records of the activity of the WG are available in the mailing list archives. The current draft of the Collection Description Application Profile is available at http://dublincore.org/groups/collections/collection-application-profile/

Immutable page (last edited 2006-07-21 15:01:19 by PeteJohnston)