Introduction to Metadata Standards
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Metadata provides machine-readable descriptions of learning objects to create searchable indexes and catalogs. Common metadata standards like Dublin Core and IEEE Learning Object Metadata aim to promote interoperability across systems. While metadata standards define general information models and relationships, they need to be customized into metadata application profiles tailored to specific communities through controlled vocabularies and technical bindings like XML.
Introduction to Metadata Standards
- 1. Dr David Massart, EUNAgLRs – Budapest, HungaryNov. 2, 2009A Brief Introduction to Metadata Specifications
- 2. Learning Objects, Metadata, and Repositories
- 3. Metadata = Data about DataIn our context, metadata = machine-readable description of learning objectsInitially used with digital libraries (catalogue of digital resources)Create indexes (catalogue search)Evaluate search results
- 4. Metadata StandardsAvoid reinventing the wheelInteroperability (making digital resources globally discoverable)Metadata standards and specificationsDublin CoreIEEE Learning Object MetadataISO/IEC SC36/WG4
- 5. Metadata StandardsInformation model (semantic interoperability)Concepts and scopeRelationshipsControlled vocabulariesBindings (technical interoperability)How to represent (encode) a description with a given technologyExample: The IEEE LOM information model and its XML binding
- 6. Metadata StandardsAre (too) genericTend to cover all possible casesAre often incompleteNeed to be profiled (i.e., customized) to the needs of a given communityLike a metadata standard, a metadata application profile consists ofA information model andOne or more bindings
Editor's Notes
- #4: Learning Object:Anything digital used for learning and/or teachingLearning Object Metadata:Machine-readable description of learning resources Learning Object Repository:Software system for managing learning resources and their metadata