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Learning Resource Exchange Infrastructure

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Learning Resource Exchange Infrastructure

  1. 1. David Massart European Schoolnet (EUN) The EUN Learning Resource Exchange Infrastructure
  2. 2. Outline <ul><li>Glossary </li></ul><ul><li>An infrastructure for exchanging learning resources </li></ul><ul><ul><li>A Brief History </li></ul></ul><ul><ul><li>Finding repositories </li></ul></ul><ul><ul><li>Collecting metadata </li></ul></ul><ul><ul><li>Exposing learning resources </li></ul></ul><ul><li>Inside the dark cloud </li></ul><ul><ul><li>Metadata management </li></ul></ul><ul><ul><li>Indexation </li></ul></ul><ul><li>Conclusion: Getting Connected </li></ul>
  3. 3. Glossary <ul><li>Learning Resource: </li></ul><ul><li>Anything digital used for learning and/or teaching </li></ul><ul><li>Learning Resource Metadata: </li></ul><ul><li>Machine-readable description of learning resources </li></ul><ul><li>Learning Resource Repository: </li></ul><ul><li>Software system for managing learning resources and their metadata </li></ul>
  4. 4. Learning Resource Exchange <ul><li>An infrastructure for </li></ul><ul><li>Federating applications that provide learning resources (e.g.,  learning resource repositories, authoring tools) </li></ul><ul><li>Offering a seamless access to these resources to educational applications that consume them (e.g., educational portals, VLEs) </li></ul>
  5. 6. A Brief History of the LRE <ul><li>ETB: Dublin Core, NNTP => LRE Thesaurus </li></ul><ul><li>CELEBRATE: LOM, Brokerage System (JMS + WS) => Simple Query Interface (SQI) + LRE Application Profile (LRE AP) </li></ul><ul><li>FIRE: LOM, SQI Brokerage System => S 2 QL </li></ul><ul><li>CALIBRATE: LRE AP, SQI + OAI-PMH Brokerage System, S 2 QL => PLQL </li></ul><ul><li>MELT: Service-Oriented Architecture => >150,000 open resources + Metadata </li></ul><ul><li>ASPECT:  Much more to come  </li></ul>
  6. 7. Finding Repositories
  7. 8. Collecting Metadata <ul><li>(Federated) search: SQI, SRU </li></ul><ul><li>Harvesting: OAI-PMH </li></ul><ul><li>Publishing: SWORD, SPI </li></ul><ul><li>Mass upload: Excel sheets </li></ul>
  8. 9. Exposing Learning Resources <ul><li>Search: SQI, SRU </li></ul><ul><li>Harvesting: OAI-PMH </li></ul><ul><li>Index pushing </li></ul><ul><li>Syndication: Atom/RSS </li></ul>
  9. 11. Inside the Dark Cloud <ul><li>Once collected (or generated), metadata is </li></ul><ul><li>Controlled </li></ul><ul><li>Corrected / Completed </li></ul><ul><li>Identified </li></ul><ul><li>Transformed into an LRE format (CMR) </li></ul><ul><li>Enriched </li></ul><ul><li>Translated </li></ul><ul><li>Indexed </li></ul>
  10. 12. Metadata Control (Negotiation)
  11. 13. Metadata Control (Negotiation)
  12. 14. Metadata Control (Negotiation)
  13. 15. Metadata Control (In Action)
  14. 16. Metadata Correction / Completion
  15. 17. LRE Metadata Format (CMR)
  16. 18. Metadata Lifecycle & Identity
  17. 19. Metadata Enrichment
  18. 20. User-Generated Information
  19. 21. Metadata Enrichment <ul><li>User-Generated Information </li></ul><ul><li>Bookmarks </li></ul><ul><li>Tags (folksonomies) </li></ul><ul><li>Rating ( ) </li></ul><ul><li>“ Travel well” potential </li></ul><ul><li>Professional Indexers </li></ul><ul><li>LRE thesaurus </li></ul><ul><li>Curriculum mapping </li></ul><ul><li>Human translation </li></ul><ul><li>Copyright clearance </li></ul>
  20. 22. Automatic Translation of Metadata <ul><li>Identifiers do not need to be translated </li></ul><ul><li>Controlled vocabularies are easy to translate </li></ul><ul><li>Automatic translations of free texts </li></ul><ul><ul><li>Can be indexed as such </li></ul></ul><ul><ul><li>Need to be revised for end-users </li></ul></ul>
  21. 23. Metadata Indexation
  22. 24. Conclusion: Getting Connected <ul><li>Today, connecting a repository to the LRE </li></ul><ul><ul><li>A matter of days </li></ul></ul><ul><ul><li>Large choice of connection type (search, harvesting, push, etc.) </li></ul></ul><ul><li>Today, searching the LRE </li></ul><ul><ul><li>Fast and reliable </li></ul></ul><ul><ul><li>Large choice of access method (search, etc.) </li></ul></ul><ul><li>Today, the LRE keeps on advancing the state of the art in infrastructure for learning resource discovery and exchange </li></ul>
  23. 25. For More Information <ul><li>LRE: http://lre.eun.org </li></ul><ul><li>FIRE page: http://fire.eun.org </li></ul><ul><li>ASPECT project: http://aspect-project.org </li></ul>
  24. 27. Searching the LRE with SQI <ul><li>Query Language: LRE-QL </li></ul><ul><li>Result Format: </li></ul><ul><ul><li>LOM (LRE AP) </li></ul></ul><ul><ul><li>CMR </li></ul></ul><ul><li>http://wiki.eun.org/lre-dev-guide/ </li></ul><ul><li>Simple Query Interface (SQI) SOAP Web Service </li></ul>

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