IMS LODEWork Done & In Progress http://imsglobal.org/lode/<br />Dr. David Massart and Dr. Elena Shulman<br />European Scho...
Outline<br />
Learning Objects, Metadata, and Repositories<br />
Learning Objects, Metadata, and Repositories<br />
Learning Objects, Metadata, and Repositories<br />
Learning Objects, Metadata, and Repositories<br />
Learning Object Discovery Service<br />
Learning Object Discovery Service<br />
Metadata<br />http://www.dlib.indiana.edu/~jenlrile/metadatamap/<br />
Learning Object Discovery & Exchange (LODE) specification <br />Aims to facilitate the discovery and retrieval of learning...
LODE Overview<br />
1st Data Model: LODE Registry<br />
LODE Registry Data Model<br />
Property Data Type<br />Allows for relative strengths of properties in a collection<br />Has a Source and Value, with the ...
Profiling LODE Registry<br />*A priori, all attributes are optional<br />
2nd Data Model: Information for Learning Object eXchange (ILOX)<br />ILOX is based on FRBR<br />
The ILOX Container<br />FRBR: Work (Learning Object), Expression (version), Manifestation (format), Item (copy)<br />
Describing an ILOX Level: General Principles<br />
Describing an Expression<br />
Organizing Multiple Specifications in One Container<br /><ul><li> Level-specific metadata can be attached at each ILOX lev...
 The aspects being described  by the attached metadata are expressed by facet names: main, license/rights, accessibility, ...
Example of metadata attached at the Expression level</li></li></ul><li>Profiling LODE ILOX<br />
ILOX Work as Rootwith IMS CC Profile of IEEE LOM<br />
ILOX Description Facet Vocabularies<br />
Permitted Elements at the Main Facet of the Work Level<br />*When rights information is present, mandatory to use license/...
Permitted Elements at the Main Facet of the Expression Level<br />*When rights information is present, mandatory to use li...
Permitted Elements at the Main Facet of the Manifestation Level<br />*When rights information is present, mandatory to use...
Permitted Elements at the Main Facet of the Item Level<br />*When rights information is present, mandatory to use license/...
3rd Data Model: LODE Context Set<br />
Profiling LODE Context Set<br />While the semantics of the access points are mostly derived from LOM, there is no requirem...
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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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  • 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
  • Overview and Current Status of IMS Learning Object and Discovery (LODE)

    1. 1. IMS LODEWork Done & In Progress http://imsglobal.org/lode/<br />Dr. David Massart and Dr. Elena Shulman<br />European Schoolnet<br />August 17, 2010<br />
    2. 2. Outline<br />
    3. 3. Learning Objects, Metadata, and Repositories<br />
    4. 4. Learning Objects, Metadata, and Repositories<br />
    5. 5. Learning Objects, Metadata, and Repositories<br />
    6. 6. Learning Objects, Metadata, and Repositories<br />
    7. 7. Learning Object Discovery Service<br />
    8. 8. Learning Object Discovery Service<br />
    9. 9. Metadata<br />http://www.dlib.indiana.edu/~jenlrile/metadatamap/<br />
    10. 10.
    11. 11. Learning Object Discovery & Exchange (LODE) specification <br />Aims to facilitate the discovery and retrieval of learning objects stored across more than one collection<br />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<br />Proposes three main data models<br />Learning Object Repository Registry Data Model<br />Information for Learning Object eXchange (ILOX)<br />LODE Context Set for the Contextual Query Language (CQL)<br />
    12. 12. LODE Overview<br />
    13. 13. 1st Data Model: LODE Registry<br />
    14. 14. LODE Registry Data Model<br />
    15. 15. Property Data Type<br />Allows for relative strengths of properties in a collection<br />Has a Source and Value, with the same meaning as for VocabularyTerm<br />Has a Strength quantifier that<br /> 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)<br />Is optional, and the assumed default value is “some”.<br />
    16. 16. Profiling LODE Registry<br />*A priori, all attributes are optional<br />
    17. 17. 2nd Data Model: Information for Learning Object eXchange (ILOX)<br />ILOX is based on FRBR<br />
    18. 18. The ILOX Container<br />FRBR: Work (Learning Object), Expression (version), Manifestation (format), Item (copy)<br />
    19. 19. Describing an ILOX Level: General Principles<br />
    20. 20. Describing an Expression<br />
    21. 21. Organizing Multiple Specifications in One Container<br /><ul><li> Level-specific metadata can be attached at each ILOX level using the ‘description’ mechanism
    22. 22. The aspects being described by the attached metadata are expressed by facet names: main, license/rights, accessibility, etc.
    23. 23. Example of metadata attached at the Expression level</li></li></ul><li>Profiling LODE ILOX<br />
    24. 24. ILOX Work as Rootwith IMS CC Profile of IEEE LOM<br />
    25. 25. ILOX Description Facet Vocabularies<br />
    26. 26.
    27. 27.
    28. 28. Permitted Elements at the Main Facet of the Work Level<br />*When rights information is present, mandatory to use license/rights facet with IEEE LOM 6 Rights attached <br />
    29. 29. Permitted Elements at the Main Facet of the Expression Level<br />*When rights information is present, mandatory to use license/rights facet with IEEE LOM 6 Rights attached <br />
    30. 30. Permitted Elements at the Main Facet of the Manifestation Level<br />*When rights information is present, mandatory to use license/rights facet with IEEE LOM 6 Rights attached <br />
    31. 31. Permitted Elements at the Main Facet of the Item Level<br />*When rights information is present, mandatory to use license/rights facet with IEEE LOM 6 Rights attached <br />
    32. 32. 3rd Data Model: LODE Context Set<br />
    33. 33. Profiling LODE Context Set<br />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<br />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)<br />The metadata underlying the access points can be profiled so as to constrain values to particular vocabularies <br />
    34. 34. In Progress<br />

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