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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.

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

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Update on Work of Joint DCMI/IEEE LTSC Task Force

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

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