Update on work of Joint DCMI/IEEE LTSC Task Force JISC CETIS Metadata & Digital Repositories SIG meeting, Manchester

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

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

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

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

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

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?

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?

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”

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”

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

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

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)

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)

Update on work of Joint DCMI/IEEE LTSC Task Force CETIS Metadata & Digital Repositories SIG, UKOLN, Bath