Overview and Current Status of IMS Learning Object and Discovery (LODE)
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This presentation introduces the IMS Learning Object Discovery and Exchange (LODE) specification. It presents its current status and future work.
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Overview and Current Status of IMS Learning Object and Discovery (LODE)
- 1. IMS LODEWork Done & In Progress http://imsglobal.org/lode/ Dr. David Massart and Dr. Elena Shulman European Schoolnet August 17, 2010
- 2. Outline
- 3. Learning Objects, Metadata, and Repositories
- 4. Learning Objects, Metadata, and Repositories
- 5. Learning Objects, Metadata, and Repositories
- 6. Learning Objects, Metadata, and Repositories
- 7. Learning Object Discovery Service
- 8. Learning Object Discovery Service
- 11. Learning Object Discovery & Exchange (LODE) specification Aims to facilitate the discovery and retrieval of learning objects stored across more than one collection Is a glue specification that profiles existing general-purpose protocols to take into account requirements specific to the educational domain, rather than creating new protocols Proposes three main data models Learning Object Repository Registry Data Model Information for Learning Object eXchange (ILOX) LODE Context Set for the Contextual Query Language (CQL)
- 12. LODE Overview
- 13. 1st Data Model: LODE Registry
- 14. LODE Registry Data Model
- 15. Property Data Type Allows for relative strengths of properties in a collection Has a Source and Value, with the same meaning as for VocabularyTerm Has a Strength quantifier that can take one of the values “some”, “most”, and “all” (i.e., the property applies to some, most, or all of the items in the collection) Is optional, and the assumed default value is “some”.
- 16. Profiling LODE Registry *A priori, all attributes are optional
- 17. 2nd Data Model: Information for Learning Object eXchange (ILOX) ILOX is based on FRBR
- 18. The ILOX Container FRBR: Work (Learning Object), Expression (version), Manifestation (format), Item (copy)
- 19. Describing an ILOX Level: General Principles
- 22. The aspects being described by the attached metadata are expressed by facet names: main, license/rights, accessibility, etc.
- 24. ILOX Work as Rootwith IMS CC Profile of IEEE LOM
- 25. ILOX Description Facet Vocabularies
- 28. Permitted Elements at the Main Facet of the Work Level *When rights information is present, mandatory to use license/rights facet with IEEE LOM 6 Rights attached
- 29. Permitted Elements at the Main Facet of the Expression Level *When rights information is present, mandatory to use license/rights facet with IEEE LOM 6 Rights attached
- 30. Permitted Elements at the Main Facet of the Manifestation Level *When rights information is present, mandatory to use license/rights facet with IEEE LOM 6 Rights attached
- 31. Permitted Elements at the Main Facet of the Item Level *When rights information is present, mandatory to use license/rights facet with IEEE LOM 6 Rights attached
- 32. 3rd Data Model: LODE Context Set
- 33. Profiling LODE Context Set While the semantics of the access points are mostly derived from LOM, there is no requirement that the metadata of learning objects actually be coded in LOM: any metadata schema that can be transformed so as to match the access point semantics is permissible The data model is intended for use through CQL and its access points and modifiers correspond to CQL indexes and relation modifiers, through a default CQL binding. Other bindings are permissible (e.g., PLQL) The metadata underlying the access points can be profiled so as to constrain values to particular vocabularies
- 34. In Progress
Notes de l'éditeur
- Learning Object:Anything digital used for learning and/or teachingLearning Object Metadata:Machine-readable description of learning resources Learning Object Repository:Software system for managing learning resources and their metadata
- Learning Object:Anything digital used for learning and/or teachingLearning Object Metadata:Machine-readable description of learning resources Learning Object Repository:Software system for managing learning resources and their metadata
- Learning Object:Anything digital used for learning and/or teachingLearning Object Metadata:Machine-readable description of learning resources Learning Object Repository:Software system for managing learning resources and their metadata
- Learning Object:Anything digital used for learning and/or teachingLearning Object Metadata:Machine-readable description of learning resources Learning Object Repository:Software system for managing learning resources and their metadata
- Ask for questions
- Ask for questions
- ILOX is based on FRBR
- Describe the FRBR terminology
- Give example of a dimension name and parameter – “language” and “en”
- Ask for questions