![Page 1: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/1.jpg)
IMS LODEWork Done & In Progress
http://imsglobal.org/lode/
Dr. David Massart and Dr. Elena ShulmanEuropean Schoolnet
August 17, 2010
![Page 2: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/2.jpg)
Outline
![Page 3: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/3.jpg)
Learning Objects, Metadata, and Repositories
![Page 4: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/4.jpg)
Learning Objects, Metadata, and Repositories
![Page 5: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/5.jpg)
Learning Objects, Metadata, and Repositories
![Page 6: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/6.jpg)
Learning Objects, Metadata, and Repositories
![Page 7: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/7.jpg)
Learning Object Discovery Service
![Page 8: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/8.jpg)
Learning Object Discovery Service
![Page 9: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/9.jpg)
Metadata
http://www.dlib.indiana.edu/~jenlrile/metadatamap/
![Page 10: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/10.jpg)
![Page 11: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/11.jpg)
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 models1. Learning Object Repository Registry Data Model2. Information for Learning Object eXchange (ILOX)3. LODE Context Set for the Contextual Query
Language (CQL)
![Page 12: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/12.jpg)
LODE Overview
![Page 13: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/13.jpg)
1st Data Model: LODE Registry
![Page 14: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/14.jpg)
LODE Registry Data Model
![Page 15: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/15.jpg)
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”.
![Page 16: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/16.jpg)
Profiling LODE Registry
*A priori, all attributes are optional
![Page 17: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/17.jpg)
2nd Data Model: Information for Learning Object eXchange (ILOX)
ILOX is based on FRBR
![Page 18: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/18.jpg)
The ILOX Container
FRBR: Work (Learning Object), Expression (version), Manifestation (format), Item (copy)
![Page 19: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/19.jpg)
Describing an ILOX Level: General Principles
![Page 20: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/20.jpg)
Describing an Expression
![Page 21: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/21.jpg)
Organizing Multiple Specifications in One Container
• Level-specific metadata can be attached at each ILOX level using the ‘description’ mechanism
• The aspects being described by the attached metadata are expressed by facet names: main, license/rights, accessibility, etc.
•Example of metadata attached at the Expression level
![Page 22: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/22.jpg)
Profiling LODE ILOX
![Page 23: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/23.jpg)
ILOX Work as Rootwith IMS CC Profile of IEEE LOM
![Page 24: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/24.jpg)
ILOX Description Facet Vocabularies
Facet name Work Expression Manifestation Itemmain (LOM) x x x xlicense/rights (LOM rights)
x x x x
paradata x x x xreputation x x x xtransaction x x x xmeta (LOM meta-metadata)
x
accessibility x
LTI x
![Page 25: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/25.jpg)
![Page 26: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/26.jpg)
![Page 27: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/27.jpg)
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
![Page 28: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/28.jpg)
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
![Page 29: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/29.jpg)
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
![Page 30: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/30.jpg)
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
![Page 31: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/31.jpg)
3rd Data Model: LODE Context Set
![Page 32: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/32.jpg)
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
![Page 33: Overview and Current Status of IMS Learning Object and Discovery (LODE)](https://reader033.vdocument.in/reader033/viewer/2022061114/545c1992b0af9f0d318b46b9/html5/thumbnails/33.jpg)
In Progress