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An Update on Digital Libraries. David Millman Director of Research & Development Academic Information Systems Columbia University dsm@columbia.edu. Today’s Agenda. Historical examples An architectural way of looking at the territory Current examples at my institution. Dig Lib History—1.
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An Update on Digital Libraries David Millman Director of Research & Development Academic Information Systems Columbia University dsm@columbia.edu
Today’s Agenda • Historical examples • An architectural way of looking at the territory • Current examples at my institution
Dig Lib History—1 • non-networked: CD’s, videodisk (’80s) • networked • ftp, simtel-20 “archive” • campus-wide information systems • NSF DLI “1” awards (1994) • monolithic systems • comprehensive systems • document processing • architectures • formats (video, GIS, SGML text) • Industry initiatives (mid ’90s) • web site as public presence • unmediated technical libraries • search engines
Dig Lib History—2 • Digital Library Federation (1995) • initially “a dozen” research libraries • provide leadership • NSF DLI “2” awards (1999) • many smaller projects • independent technology & content • Libraries common practices • metadata focus • separation of objects from processes • Industry and higher-ed common practices • workflow / CMS • learning management systems • institutional repositories • archives
Architecture Layers Interface Index / Services Access Management Identifier Management Storage
Some Applications Learning Management System Institutional Repository Image Databank
Applications in context Learning Management System Institutional Repository Image Databank index index access control identifiers identifiers identifiers storage storage stg storage
Architecture Layers Interface Index / Services Access Management Identifier Management Storage
Storage Activities • scalable ways of preserving bits • format registries and migration tools • “archival” metadata packaging • policy and process
Architecture Layers Interface Index / Services Access Management Identifier Management Storage
Identifiers • persistent identifier technologies • services • appropriate copy • issues • versions / editions • assignment authority
Architecture Layers Interface Index / Services Access Management Identifier Management Storage
Access Mgmt Activity • rights expression languages • secure assertion languages • applications / protocols • policy
Architecture Layers Interface Index / Services Access Management Identifier Management Storage
Higher level services • discovery • retrieval • registries • metadata • standards • interchange / processing • structural
Architecture Layers Interface Index / Services Access Management Identifier Management Storage
Interface Activity • application categories • delivery platforms
Local Examples • Electronic Publishing Initiative at Columbia (EPIC) • collaboration among libraries / technology / university press • experiments in workflow, sustainability, infrastructure • Columbia Center for New Media Teaching and Learning (CCNMTL) • innovation in networked learning • strong teaching faculty engagement • Department of Computer Science • integrated retrieval strategies • media formats • Libraries Digital Program • collections • discovery tools