1. Advanced Distributed Learning Initiative International DOI Foundation Meeting 22 June 2004 James Erwin Defense Technical Information Center

2. Content Object Repository Discovery and Registration Architecture (CORDRA) Goal: Goal: Provide a lightweight, distributed capability to support the registration, discovery, access, and reuse of SCORM compliant digital learning objects Concept: Concept: –Loose confederation of SCORM compliant digital learning object repositories –Distributed Handle assignment; centralized namespace assignment –Centralized registration of repositories and digital learning objects –Centralized discovery and repository/object resolution CORDRA Team CORDRA Team –ADL Program: CORDRA vision, advocacy, and resourcing –CNRI: CORDRA development –DTIC: CORDRA operation

3. Shareable Course Object Reference Model (SCORM) Architecture Asset Shareable Course Object (SCO) Lesson Course

4. CORDRA Concept Handles and Repository/Object Metadata Repository/Object Registration DiscoveryRepository/Object Resolution Distributed SCORM Compliant Repositories DTIC Estimated 100-200 repositories and 10M digital learning objects

5. Content Object Repository Discovery and Registration Architecture (CORDRA) Technology: Technology: –Database: Berkeley DB –Search engine: Lucerne –Identification/resolution: Handles Schedule: Schedule: –Operational prototype in Sep 2004 –Operational system in Dec 2004

6. Questions? Contact: James Erwin 703-494-6148jerwin@dtic.mil