jisc cetis conference, oxford, november 2004 repositories: state of elf “volunteer”: martin...
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JISC CETIS Conference, Oxford, November 2004
Repositories: State of ELF
“volunteer”:
Martin MorreyIntrallect 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)
VLE
LibrarySystem
RepositoryIMS MD
IEEE LOMODRL
IMS DRI (WS)
SRU/SRW Z39.50
OAI PMH
AuthoringTool
IMS CP
WebDav
UserIDsUser
IDsUserInfo LDAP…
Por
tal
Portlets (JSR 168)
WWW
URL
API
SMTP
RSS
JISC CETIS Conference, Oxford, November 2004
ARROW
JISC CETIS Conference, Oxford, November 2004
CORDRA
JISC CETIS Conference, Oxford, November 2004
JISC CETIS Conference, Oxford, November 2004
Repositories Domain Map
Embedded Metadata
[Metadata in, e.g. content packages]
Metadata Quality
Expose
Archive
Federation
Search
Deliver
Destroy
Harvest
Cross search
RepositoriesResource
collections + Metadata
Submit
Access Management
Rights Management
Annotate / rate / review
Dis/aggregateEmbedding in
learning environments
Metadata Creation
Vocabularies, thesauri,
ontologies
JISC CETIS Conference, Oxford, November 2004
JORUM
Embedded Metadata
[Metadata in, e.g. content packages]
Metadata Quality
Expose
Archive
Federation
Search
Deliver
Destroy
Harvest
Cross search
RepositoriesResource
collections + Metadata
Submit
Access Management
Rights Management
Annotate / rate / review
Dis/aggregateEmbedding in
learning environments
Metadata Creation
Vocabularies, thesauri,
ontologies
JISC CETIS Conference, Oxford, November 2004
D+ (University of Edinburgh)
Access Management
(ATHENS)
Deliver
Search
Cross search
RepositoriesResource collections +
Metadata
Federation
Expose
Metadata Creation
JISC CETIS Conference, Oxford, November 2004
DELTA (University of Essex)
Metadata Quality
Expose
Archive
Federation
Rights ManagementSearch
Metadata Creation
Deliver
Destroy
Harvest
Embedded Metadata[Metadata in, e.g. content packages]
Submit
Embedding in learning environments Access
ManagementCross search
RepositoriesResource collections +
Metadata
JISC CETIS Conference, Oxford, November 2004
Initiatives mapped to ELF
• JORUM• IE MSR• SURF X4L• COSE• HLSI• Norway
• D+• MDC• DELTA• Intrallect
JISC CETIS Conference, Oxford, November 2004
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
Harvesting
Resolver
Logging
Workflow
Mapping
Messaging
Content management
Rating / Annotation
Chat
Person
Calendaring
Alert
AV conferencing
E-mail management
DRM
Identifier
Search
Presence
Authentication
Packaging
Terminology
Federated search
Role
Metadata management
Whiteboard
Context
Scheduling
Metadata service registry
Filing
Service registry
Rules
Authorisation
Archiving
User preferences
Group
Member
Format conversion
Forum
JISC CETIS Conference, Oxford, November 2004
Learning Domain Services
Reporting
Resource list
Competency
Activity author
Course validation
Sequencing
Tracking
Assessment
ePortfolio
Marking
Quality assurance
Activity management
Grading
Learning flow
Curriculum
Personal development
Course management
JISC CETIS Conference, Oxford, November 2004
Sample User Agents
Library system
Marking tool
VLE / LMS
Timetabling
ePortfolio
Portal
Authoring applications
Learning flow
Enrollment portlet
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