Schemas and Schema-driven Metadata Software
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Schemas and Schema-driven Metadata Software Presentation Transcript

  • 1. Schemas and Schema-driven Metadata Software
      • Dr Stephen Crawley, eResearch Group, ITEE
      • University of Queensland
  • 2. What should be in a Schema?
    • Element names, labels, descriptions
    • Element values: types / patterns / value sets
    • Structures: flat / tree / graph, cardinality, etc
    • Complex constraints
    • Relationships with other schemas: inheritance, subtyping, composition, etc
    • Semantics: relationships with ontologies.
    • Schema versioning ...
  • 3. Scope for Schema-driven Apps
    • Metadata entry and display
    • Validation of metadata
    • Mapping between metadata representations:
      • XML vs RDF vs <meta> vs ...
      • need representation independent schemas
    • Metadata conversion / schema versions
    • Extracting / harvesting metadata from other sources
  • 4. Recent eResearch Group Tools
    • ARCHER metadata tools:
      • MDE: a schema driven (XML) metadata editor
      • MSF: tools for defining metadata schemas
      • MDSR: simple metadata schema repository
    • Pronto ontology repository
    • DIAS-B tools:
      • Danno annotation repository (annotea + ...) ‏
      • Dannotate annotation tool
    • LORE annotation tool.
    • SourceForge project: “metadata-net”
  • 5. Future Work
    • Schema-driven annotation tools
    • Annotation of objects (vs web pages)
    • Annotation of images, maps, etc
    • Integrate MDE/MSF and Danno/Dannotate
    • Support for more schema types in Pronto
    • Stand-alone editing, repository components
    • Completing the Annotea specification
    • Annotation schema work