
a554183f3f9ce6bd67af9e89715f2c4c.ppt
- Количество слайдов: 23
Repositories: State of ELF “volunteer”: Martin Morrey Intrallect Ltd JISC CETIS Conference, Oxford, November 2004
Context • Repositories span multiple frameworks, architectures & domains • Repository interoperability research and development has been ongoing for many years • digital library sector • Not just ELF JISC CETIS Conference, Oxford, November 2004
IMS DRI JISC CETIS Conference, Oxford, November 2004
JISC Information Environment JISC CETIS Conference, Oxford, November 2004
Repository interfaces (Intrallect) Authoring Tool Portal IMS CP VLE IMS DRI (WS) Portlets (JSR 168) SMTP RSS Web. Dav User IDs Info JISC CETIS Conference, Oxford, November 2004 SRU/SRW Z 39. 50 Repository Library System IMS MD IEEE LOM ODRL URL LDAP… API OAI PMH WWW
ARROW JISC CETIS Conference, Oxford, November 2004
CORDRA JISC CETIS Conference, Oxford, November 2004
JISC CETIS Conference, Oxford, November 2004
Repositories Domain Map Vocabularies, thesauri, ontologies Embedded Metadata [Metadata in, e. g. content packages] Metadata Creation Annotate / review Repositories Resource collections + Metadata Quality Archive Destroy Submit Rights Management Search Federation Expose JISC CETIS Conference, Oxford, November 2004 Harvest Cross search Deliver Embedding in learning environments Access Management Dis/aggregate
JORUM Vocabularies, thesauri, ontologies Embedded Metadata [Metadata in, e. g. content packages] Metadata Creation Annotate / review Repositories Resource collections + Metadata Quality Archive Destroy Submit Rights Management Search Federation Expose JISC CETIS Conference, Oxford, November 2004 Harvest Cross search Deliver Embedding in learning environments Access Management Dis/aggregate
D+ (University of Edinburgh) Metadata Creation Repositories Resource collections + Metadata Search Expose Cross search Federation Access Management (ATHENS) Deliver JISC CETIS Conference, Oxford, November 2004
DELTA (University of Essex) JISC CETIS Conference, Oxford, November 2004
Initiatives mapped to ELF • • • JORUM IE MSR SURF X 4 L COSE HLSI Norway JISC CETIS Conference, Oxford, November 2004 • • D+ MDC DELTA Intrallect
Project Activity related to JISC ELF Sample User Agents Learning Domain Services Common Services Institutional Infrastructures (TCP/IP etc. ) JISC CETIS Conference, Oxford, November 2004
Common Services Messaging Authentication Authorisation Resolver DRM Metadata service registry Logging Identifier Filing Workflow Search Service registry Mapping Presence Rules Harvesting E-mail management Scheduling Content management Packaging Archiving Rating / Annotation Terminology User preferences Chat Federated search Group Person Role Member Calendaring Metadata management Format conversion Alert Whiteboard Forum AV conferencing Context JISC CETIS Conference, Oxford, November 2004
Learning Domain Services Sequencing Activity management Course management Resource list Assessment Grading Competency e. Portfolio Learning flow Activity author Marking Curriculum Course validation Quality assurance Personal development Reporting Tracking JISC CETIS Conference, Oxford, November 2004
Sample User Agents VLE / LMS Portal Enrollment portlet Library system Timetabling Authoring applications Marking tool e. Portfolio Learning flow JISC CETIS Conference, Oxford, November 2004
State of ELF • Technology is rapidly maturing • Relatively robust • Starting to see real-world implementation • Demonstrable cross-searching • Move to federated searching • “Technology is not a problem, we are getting there” JISC CETIS Conference, Oxford, November 2004
Technical Issues • Identifiers (deciding) • Rights Management • Metadata • Automated creation • Distributed metadata creation • Decoupling metadata and content • Relevancy in searches • Performance of distributed search JISC CETIS Conference, Oxford, November 2004
ELF Warning • “Federated repository implementations failed in the past because the technology was immature. The technology is now maturing, but the business and governance issues will kill us. ” - Dan Rehak JISC CETIS Conference, Oxford, November 2004
ELF Needs & Problems • “Seamless” integration to the real world • Embedding repositories in everyday practice • Managing the business process • Institutional policy • Understanding & enabling workflows (how to manage “stuff”) • Motivation to contribute • Staff development • Technical policies of institutions impede interoperability e. g. Security JISC CETIS Conference, Oxford, November 2004
ELF Advice (to JISC) • Lobby institutions to be more open with resources • Address governance issues • Identifiers, DRM infrastructure • Support training and staff development • “Teach teachers how to search” • Look at applicable technologies from other areas (libraries, grid) • “Don’t always look for technical solutions” • Look at presentation of information • More prototyping, mock-ups and usability work JISC CETIS Conference, Oxford, November 2004
More ELF Advice • Define a common language to discuss repositories i. e. What do we mean by • “repository” • “content” • Look for commonality across representations (of frameworks) • Drivers to promote practice • cf motivation of open source • Focus on identifying user needs JISC CETIS Conference, Oxford, November 2004