Learning Object Repository Registry (LORRy)

Dr David Massart, EUN

Licensed under IMS LODE License

• Creative Commons Attribution-Share Alike 3.0 United States License

• Notification of patent claims• Sharing of derivative works with the IMS LODE

Community• http://www.imsglobal.org/lode/lode_license.html

Disclaimer

The work described in this presentation is partially supported by the European Community eContentplus programme - project ASPECT: Adopting Standards and Specifications for Educational Content (Grant agreement number ECP-2007-EDU-417008). The author is solely responsible for the content of this presentation. It does not represent the opinion of the European Community and the European Community is not responsible for any use that might be made of information contained therein.

Outline

• A registry! What for?• Functional Requirements for Bibliographic

Records (FRBR)• FRBR & LOM• Describing LOs at Different FRBR Levels• Metadata description in practice• Handling LOM (instead of LOs)• Discussion: ILOX versus OAI-ORE

To federate learning object repositories …

… You need to know where they are …

… And what protocols they support

Current Limitations

• There is no way for a federation such as the LRE to automatically discover new repositories

• The locations of the LRE repositories have to be entered manually

• The knowledge of the protocols supported by repositories for exposing resources is implicit

LOR Registry

IMS LODE Registry Data Model

• Based on the ISO 2146 model for registry description

• Describes:– Content collections– Metadata collections– Protocols– Targets– Access policy

Five Basic Types

1. CharacterString (ex: “apple”)2. Identifier– Catalog (ex: “uri”)– Entry (ex: “http://entity.123.345/567”)

3. LangString– Language (ex: “en”)– String (ex: “apple”)

4. VocabTerm– VocabularyID (ex: “fruit list”)– Value (ex: “apple”)

Five Basic Types (cont.)

5. Property

Strength: “some”, “most”, and “all”

Protocols

SQI

OAI-PMH

Target

Resources• ASPECT Deliverable D2.2: Design of Data Model

and Architecture for a Registry of Learning Object Repositories and Application Profiles http://aspect-project.org/sites/default/files/docs/ASPECT_D2p2.pdf

• Bindings:– Collection:

http://fire.eun.org/xsd/registry/imsloreg_v1p0.xsd – OAI-PMH:

http://fire.eun.org/xsd/registry/imslooaipmh_v1p0.xsd – SQI: http://fire.eun.org/xsd/registry/imslosqi_v1p0.xsd