2015 cic: #edtech forum - lrmi
TRANSCRIPT
LRMI and Learning Resource (Description) Visibility
Speaking the language of the Open Web...
Stuart A. SuttonManaging Director, Dublin Core Metadata Initiative (DCMI)
Member: DCMI / LRMI Working [email protected]
Dublin Core ISO MLRMetadata
Custom
Profile
Learning Resource Repositories
LRMIIEEE/LOM
LRM
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LRM
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LRM
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LRM
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LRM
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...via schema.org collaboration...
• DCMI established in 1995• Globally recognized metadata
schemas for web resource discovery
• LRMI development started in 2011 as the education extension for schema.org
• In October 2014, stewardship of LRMI was transferred to DCMI by AEP & Creative Commons.
• DCMI/LRMI Task Group to manage further development of LRMI specification.
Dublin Core Metadata Initiative (DCMI)
http://lov.okfn.org/dataset/lov/
Web Schemes & Schemas
Agenda...• Transfer of LRMI metadata specification• Machine-actionable core value vocabulary development• Improving LRMI implementer documentation• Guidance & Best Practices
– Educational Framework development– Education community and application metadata profiling with LRMI– Managing intersection of closed systems & the open world of the Web
Transfer of LRMI metadata specification...LRMI Task Group: Work Package #1 (October 2014)
Formalization of LRMI the schema
1. Transfer of official LRMI schema specification from lrmi.net to dublincore.org
http://dublincore.org/dcx/lrmi-terms/
2. Creation of an RDF schema to support long-term curation, further development and long-term availability of the spec.
3. Publication of the LRMI schema in various serializations:• JSON-LD• RDFa• Microdata• RDF/XML• Turtle/N3
4. Formal mapping of the LRMI schema to the schema.org schema
http://dublincore.org/dcx/lrmi-terms/
Machine-actionable value vocabulary developmentLRMI Task Group: Work Package #3
LRMI ‘core’ value vocabularies...Development goals1. “Core” as opposed to fine-
grained vocabularies2. Extensible (regional, local,
organizational refinements)3. Standard vocabulary description
language– W3C’s Simple Knowledge Organization
System (SKOS)
4. Multilingual support5. Web resolvable identifiers (URI)
returning machine actionable data for
6. Normalized (international) definitions
Initial core vocabularies• Educational Audience Role• Learning Resource Type• Educational Use• Alignment Type
Development Process• DCMI/LRMI Task Group• Open community comment
(LRMI Google Group)• Publication of human readable &
machine actionable vocabulary versions (JSON-LD, RDFa, Microdata)
• Registration of vocabularies with public registries (e.g., Linked Open Vocabularies (LOV))
LRMI Core Value Vocabularies
1. Web resolvable identifiers (IRI) returning machine actionable data for– Concept Schemes URI
(vocabularies)– Concepts URI (vocabulary terms)– Concept Label URI
• Use SKOS (W3C’s Simple Knowledge Organization System)
Value vocabularies using SKOS
http://lov.okfn.org/dataset/lov/
Web Schemes & Schemas
Extensible “locally”...LRMI Vocabulary: “Resource Type”State
Vocabulary Refinements
Publisher Vocabulary
Refinements
Extensible LRMI ‘value’ vocabularies...State Vocabulary
RefinementsLRMI Vocabulary: “Resource Type”
Publisher Vocabulary Refinements
Improving implementer documentation...LRMI Task Group: Work Package #5
Publishing more LRMI examples in common serializations...
"educationalAlignment": [ { "@type": "AlignmentObject” "alignmentType": "teaches", "educationalFramework": "Common Core State Standards for English Language Arts & Literacy in History/Social Studies, Science, and Technical Subjects", "targetName": "CCSS.ELA-Literacy.SL.K.1a", "targetUrl": "http://www.corestandards.org/ELA-Literacy/SL/K/1/a/" , "targetDescription": "Follow agreed-upon rules for discussions (e.g., listening to others and taking turns speaking about the topics and texts under discussion)." , }
<div itemprop="educationalAlignment" itemtype="http://schema.org/AlignmentObject" itemscope> <meta itemprop="targetUrl" content="http://www.corestandards.org/ELA-Literacy/SL/K/1/a/" /> <meta itemprop="educationalFramework" content="Common Core State Standards for English Language Arts & Literacy in History/Social Studies, Science, and Technical Subjects" /> <meta itemprop="targetDescription" content="Follow agreed-upon rules for discussions (e.g., listening to others and taking turns speaking about the topics and texts under discussion)." /> <meta itemprop="targetName" content="CCSS.ELA-Literacy.SL.K.1a" /> <meta itemprop="alignmentType" content="teaches" /> </div>
JSON-LD
Microdata
Best practice development & publication...LRMI Task Group
Initial areas of best practice development...• How to locally...
– Develop, use (and publish) “Educational Frameworks” in describing learning resources using machine-actionable mechanisms amenable to the open Web...
– Develop machine-actionable metadata profiles to support sharing at “community” and “application” levels...
– Handle the interface between the closed world of our systems and the open Web (e.g., “Unique Identifier Assumptions”)...
End
Stuart A. Sutton, DCMI Managing [email protected] | [email protected]
• LRMI 1.1 Specification: http://dublincore.org/dcx/lrmi-terms/1.1/• LRMI RDF Schema: http://dublincore.org/dcx/lrmi-terms/• LRMI Google Group: https://groups.google.com/forum/?fromgroups#!forum/lrmi• LRMI Task Group: http://wiki.dublincore.org/index.php/AB-Comm/ed/LRMI/TG