Update on Work of Joint DCMI/IEEE LTSC Task Force

Slide 1: 16 April 2007 Update on work of Joint DCMI/IEEE LTSC Task Force JISC CETIS Metadata & Digital Repositories SIG meeting, Manchester Pete Johnston, Eduserv Foundation pete.johnston@eduserv.org.uk www.eduserv.org.uk/foundation

Slide 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 JISC CETIS Metadata & Digital Repositories SIG meeting, Manchester 16 April 2007 2

Slide 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 JISC CETIS Metadata & Digital Repositories SIG meeting, Manchester 16 April 2007 3

Slide 4: Dublin Core LOM Conceptual Abstract Model Data Schema conforms to conforms to DC translate LOM Description Instance (lossy) Set Combined DC DC Description Description Set Set bound to bound to LOM-XML DC-XML DC-RDF Instance Instance Instance

Slide 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? JISC CETIS Metadata & Digital Repositories SIG meeting, Manchester 16 April 2007 5

Slide 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” JISC CETIS Metadata & Digital Repositories SIG meeting, Manchester 16 April 2007 6

Slide 7: Joint DCMI/IEEE LTSC Task Force • Charter approved by DCMI Advisory Board and IEEE LTSC SEC • Three initial outputs available for discussion: 1. Draft of LOM-DCAM mapping – includes description of DCAP 2. Example instance based on mapping LOM XML – – DC Text 3. 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 JISC CETIS Metadata & Digital Repositories SIG meeting, Manchester 16 April 2007 7

Slide 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) JISC CETIS Metadata & Digital Repositories SIG meeting, Manchester 16 April 2007 8

Slide 9: 16 April 2007 Update on work of Joint DCMI/IEEE LTSC Task Force CETIS Metadata & Digital Repositories SIG, UKOLN, Bath Pete Johnston, Eduserv Foundation pete.johnston@eduserv.org.uk www.eduserv.org.uk/foundation