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Update on Work of Joint DCMI/IEEE LTSC Task Force

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A brief report on the work of the DCMI/IEEE Task Force on interoperability between the IEEE Learning Object Metadata standard and Dublin Core. …

A brief report on the work of the DCMI/IEEE Task Force on interoperability between the IEEE Learning Object Metadata standard and Dublin Core.

Presentation given to meeting of JISC CETIS Metadata & Digital Repositories Special Interest Group, held in Manchester on 16 April 2007

Published in: Technology, Education

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  • 1. Update on work of Joint DCMI/IEEE LTSC Task Force JISC CETIS Metadata & Digital Repositories SIG meeting, Manchester
  • 2. Abstract Models & Application Profiles
    • Implementers want to use component parts of different metadata standards in combination
    • Both DC and LOM have notions of “metadata application profile”…
    • … but based on different Abstract Models
    • DC Application Profile
      • how to use a set of identified properties, vocabulary encoding schemes, syntax encoding schemes to construct a DC metadata description set
    • LOM Application Profile
      • how to use a set of identified LOM data elements, datatypes, vocabularies to construct a LOM instance
    • LOM data elements and DC properties/classes can not be used in combination in same information structure
  • 3. The proposed solution
    • Develop a LOM-DCAM mapping
      • “ LOM data elements” => “instances of DCAM components/constructs”
      • Interpretation of LOM semantics in terms of DCAM
    • Not a binding for LOM, but a translation
      • lossy in part
      • one-way translation
    • Approach
      • conceptualise LOM as Entity-Relationship model
        • build on earlier work for LOM RDF binding
      • represent E-R model in terms of DCAM constructs
      • specify required terms, assign URIs
  • 4. LOM Conceptual Data Schema Dublin Core Abstract Model DC-RDF Instance DC-XML Instance conforms to conforms to bound to translate (lossy) bound to LOM Instance DC Description Set LOM-XML Instance DC Description Set Combined DC Description Set
  • 5. Outcomes
    • View of LOM as a basic DC Application Profile
    • Availability of set of “LOM terms” which are usable in other DCAPs
    • Availability of RDF binding of LOM “for free” via DC RDF binding (mapping)
    • Separation of LOM-DCAM translation from RDF binding
    • Collaboration between communities
    • Contribution towards better alignment of DC and LOM abstract models?
  • 6. Joint DCMI/IEEE LTSC Task Force
    • Initiated at DC2005 in Madrid, Sep 2005
    • Reports to DC Education Community & IEEE LTSC
    • Chairs: Mikael Nilsson & Jon Mason
    • Participation open to all:
      • mailing list (~20 subscribers), Wiki
    • Joint:
      • Collaborative work on drafts
      • Joint consensus
      • Co-publishing of results
    • Aim: an IEEE “Recommended Practice” and a DCMI “Recommendation”
  • 7. Joint DCMI/IEEE LTSC Task Force
    • Charter approved by DCMI Advisory Board and IEEE LTSC SEC
    • Three initial outputs available for discussion:
      • Draft of LOM-DCAM mapping
        • includes description of DCAP
      • Example instance based on mapping
        • LOM XML
        • DC Text
      • Draft of required property/class/VES definitions
    • Currently awaiting
      • revisions to DCAM
      • revisions to definitions of DCMI terms
    • Recent activity within ProLearn project
      • Virtual seminars on Learning Objects, Metadata and Interoperability
  • 8. Joint DCMI/IEEE LTSC Task Force
    • Joint DCMI/IEEE LTSC Task Force
    • http://dublincore.org/educationwiki/DCMIIEEELTSCTaskforce
    • ProLearn: Network of Excellence
    • http://www.prolearn-project.org/
    • (esp Research Work Package 4)
  • 9. Update on work of Joint DCMI/IEEE LTSC Task Force CETIS Metadata & Digital Repositories SIG, UKOLN, Bath