l3s hannover february 6, 2004 e-learning infrastructure/standardization in canada norm friesen, phd...
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L3S Hannover February 6, 2004
www.cancore.org 1
E-Learning Infrastructure/Standardizatio
n in Canada
Norm Friesen, [email protected]
www.cancore.org
L3S Hannover February 6, 2004
www.cancore.org 2
Overview
What is CanCore? Why CanCore? CanCore’s metadata guidelines Other CanCore/AU aids for
implementers Related Canadian projects
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What is CanCore?
Learning Object Metadata – standard: IEEE 1484.12.1 - 2002
Is complex, general and ambiguous CanCore reduces complexity &
ambiguity Provides guidance on low level of detail Look to solutions from library and
information management world Guidelines for all 76 LOM elements
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What is CanCore?
Application profile: "customization of a standard to meet the needs of particular communities with common applications requirements."
Subset of LOM elements: 76 down to 56; 39 are "active"
Guidelines document: best practice recommendations, 200 pages
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Rationale: Semantics
E-learning specifications & standards communities are largely concerned with syntax and technical interoperation
Effective metadata use requires semantic specification and consensus
Incorporate best practice from library and heritage communities
This is not otherwise done across e-learning projects
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Rationale: Simplicity
LOM Element 5.4 Semantic Density: "The degree of conciseness of a learning object." Recommends ways of calculating it; omitting it
LOM Element 1.2 Title"Name given to this learning object." Word order, subtitles, multilingual titles,
series/episode titles LOM Classification Element Group
"Describes where this learning object falls within a particular classification system."
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Rationale: SemanticsThe LOM framework leaves gaps.
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Rationale: SemanticsCanCore fills in the gaps.
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Rationale: Specificity implementation requires a
consistent interpretation of each element’s purpose and use
Realize economy of scale by coordinating the implementation and interpretation of metadata for a number of learning object repository projects
The range of implementations has consistently expanded
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Rationale: Overview
LOMData Model: 76 elements, little interpretation
Complexity decreases
Specificity and Interoperability increases
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CanCore Guidelines explication and interpretation of
element definitions and descriptions recommendations based on best
practice recommendations for vocabulary (or
"value space") values and definitions multilingual plain language examples XML-binding examples technical implementation notes
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CanCore’s Community: input
Academic Technologies for Learning of the University of Alberta
Alberta Learning Athabasca University British Columbia Open
University Centre recherché LICEF CETIS UK Department of National
Defense, Canada Eisenhower National
Clearinghouse The Electronic Text Centre
of the University of New Brunswick
European Knowledge Network Galbraith Media Katholieke Universiteit Leuven Learning and Teaching Scotland Library and Archives of Canada Manitoba Education and Youth Memorial University Ontario Ministry of Education The Open Learning Agency of
British Columbia Stem-Net NFLD-Lab. TeleEducation New Brunswick University of Calgary
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CanCore’s Community: Federal Government Strategy
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Guidelines:Online & Print
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Clarification
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Clarification
Best Practice Recommendations
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Clarification
Best Practice Recommendations
Survey of use
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Vocabulary Definitions
Best Practice Recommendations
Survey of use
Clarification
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Vocabulary Definitions
Best Practice Recommendations
Survey of use
Technical Implementation Notes
Clarification
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CanCore Guidelines: Online
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CanCore Guidelines
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CanCore and Standards Evolution
User Needs
ApprovedStandards
R&D Concepts
LabsTestbedsMarkets
StandardsBodies
SpecConsortia
SpecConsortia
SpecConsortia
SpecConsortia
LabsTestbedsMarketsTestbeds,Markets
StandardsBodies
Specifications Implementations,Reference Models,Requirements
ADL IEEEISO
©IMS
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CanCore’s Participation in Standardization
IMS: Next steps re: maintenance & best practices document
IEEE LTSC: Java Binding, LDAP repository
ISO Subcommittee on "Information Technology for Learning Education and Training:" Completed a survey & proposal for
new approach to the LOM standard.
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Other CanCore/AU aids for implementers: ADLIB
http://adlib.athabascau.ca
Upload or link to resources
Simplified interface based on CanCore best practice recommendations
Create XML record, submit to a database, submit to AD LIB
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AD-LIB
Web-based; no software to download/install
Portable, self-contained, linked Create, store and search metadata Open Source Open protocols for sharing records Browser-independent
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MARC CanCore/LOM
Abstract datamodel-crosswalk developed with CanCore and MARC experts
Automatic conversion of MARC records to XML-formatted CanCore/LOM records
http://marc-lom.athabascau.ca/marc
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Other CanCore/AU aids for implementers LOM Java Binding:
Interface or API providing functions for working with LOM data in software systems
Implementation neutral Java interfaces for exposing data objects corresponding to those of the LOM
can be used by Java programmers for representation of LOM data objects within their own software
as an interoperable way to communicate LOM data objects with external third party software components
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LDAP LOR
LDAP: A network protocol designed to work on TCP/IP stacks to extract information from a hierarchical directory; a tool to comb through data to find a particular piece of information.
Builds a LOM record out of LDAP results distributed service for resolving
globally unique identifiers into their locations
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LDAP LOR
Based on functions outlined in the IMS Learning Object Repository Interoperability Specification (www.imsglobal.org): Harvest, Request, Search, Submit, list
Results Developed for LOM data model
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Supporters CANARIE Multimedia Learning Group, Industry
Canada Alberta Learning Athabasca University University of New Brunswick Office of Learning Technologies TeleEducation NB New Brunswick NETERA
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Related Projects: Edusource
NewMIC
Netera
AthabascaUniv.
Univ. ofWaterloo
TechnologiesCogigraph
TeleEducation
NB
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www.careo.org
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aloha.netera.ca
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eduSplash
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edusplash Interface
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LionShare: P2P, Uses
•Media organization (offline use)•Publish personal media collections•Person-to-person collaboration•Group projects•Formation of user communities•Publication of academic collections
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Technology
Based on Limewire Open Source project Modified version of the Gnutella
protocol P2P + Client/Server Architecture Decentralized + Centralized Topology
Integrated Authentication with Kerberos Integrating with Learning Design
workflow & runtime
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LionShare Team Penn State University Internet 2 Middleware and P2P WGs eduSource Canada/Simon Fraser U. MIT - Open Knowledge Initiative
(OKI) And others
Dartmouth, Florida, Georgia Tech, OSPI Interim LionShare website:
http://lionshare.its.psu.edu
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LORNet
Learning Object Repository Network
Canadian Initiative Based on Semantic Web
technologies: RDF, Ontologies, Inferential AI, etc.
Built on eduSource infrastructure
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LORNet: Themes
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Repository to Reality (R2R)
Learning Design (L.D.) specification implementation: investigation of associated technical and pedagogical issues in post-secondary educational contexts
Focus on Vocabularies and Frameworks
Produce Best Practices & Feasibility Reports
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Overview•take existing learning resources from different contexts and evaluate what works and what does not from both technological and pedagogical perspectives
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Find out more about
CanCore at:
www.cancore.ca