Post on 05-Jan-2016
description
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Registry of MEG-related schemas
Pete Johnston
UKOLN
University of Bath
Bath, BA2 7AY
UKOLN is supported by:
Emailp.johnston@ukoln.ac.ukURLhttp://www.ukoln.ac.uk/
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Purpose
• Make structure/semantics of metadata element sets available to
– human reader– discover what is available– explore, compare existing entries– bring own work into alignment
– software agent– need schemas to interpret instances– validation– mapping
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DESIRE registry
• Model– Namespaces, elements, schemes– Application profiles
– select elements– constrain values– constrain obligation/occurrence– refine semantics
• For human reader
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MEG-related entries
Namespaces• DC 1.1• DCQ 2000-07-11• DC-ED• IEEE LOM, WD
4.0• IMS Learning
Resource Metadata, v1.1
• Virtual Teacher Centre, v0.5
Application Profiles• DC ED• NGfL Scotland• EASEL DCMES,
Draft• IMS LRM Core,
v1.1• ADL SCORM,
v1.1
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Issues
• Version control/status– reference to source specification– status– date of last modification
• “Inheritance”– schemes specified in profile v schemes
specified in (namespace) element definition
• Extending semantic layer
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Future?
• More entries please!• Mapping via semantic layer?• Machine-readability
– SCHEMAS project– RDF/XML schemas– conventions for describing profiles
– registry as “middleware”– version control– support for validation– support for reuse/extensibility
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See
http://www.ukoln.ac.uk/metadata/education/registry/
http://desire.ukoln.ac.uk/registry/