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Identifiers for Historical Versions of Metadata Terms

Identifiers for Historical Versions of Metadata Terms. Thomas Baker Meeting of the DCMI Architecture Working Group DC2004, Shanghai, 2004-10-13. DCMI Term Documentation. DCMI Metadata Terms (latest information) http://dublincore.org/documents/dcmi-terms/ Historical versions of all terms

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Identifiers for Historical Versions of Metadata Terms

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  1. Identifiers for Historical Versions of Metadata Terms Thomas Baker Meeting of the DCMI Architecture Working Group DC2004, Shanghai, 2004-10-13

  2. DCMI Term Documentation • DCMI Metadata Terms (latest information) • http://dublincore.org/documents/dcmi-terms/ • Historical versions of all terms • http://dublincore.org/usage/terms/history/

  3. DCMI Metadata Terms

  4. Historical Record

  5. Problem • What is a “version” of a term in the context of the Abstract Model? • How do identifiers for versions get assigned and by what policies are they maintained?

  6. Current PracticeIdentifying Terms and Versions • By DCMI Namespace policy, permanent identifier is assigned to new terms: • http://purl.org/dc/dcmitype/Image • In practice, identifiers are also assigned to successive term descriptions: • http://dublincore.org/usage/terms/history/#Image-002 • http://dublincore.org/usage/terms/history/#Image-002

  7. One application of version URIsCitations in Translations • Translation of dc:title into Japanese • Only the human-readable parts are different: • Label • Definition • Comment • Is “about” the term: • http://purl.org/dc/elements/1.1/title • IsTranslationOf a specific version: • http://dublincore.org/usage/terms/history/#title-003

  8. Questions • Does this approach make sense? If so… • Should the identifiers be covered by DCMI Namespace Policy? • Should the URIs continue to be (in effect) anchors to locations in HTML documents? • What is the conceptual explanation of this approach?

  9. 0-1 1 MetadataVocabulary 1 1 hasTerm isDescribedBy m m Term 0-1 replaces VocabularyDescription 1 1 isDescribedBy isPartOf m 0-1 replaces TermDescription m 1 0-1 1 replaces m isPartOf Document 1 Human-readable Document SchemaDocument

  10. thomas.baker@izb.fraunhofer.de

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