Building a semantic
vocabulary framework for
educational repositories
Edrene conference
Poitiers, October 26-27, 2011
Allard Strijker, SLO
Semantic web YouTube
Questions.. to think about
• How to deal with the meaning of terms in
vocabularies?
• Related experiences, research?
Vocabularies used for
• Labelling learning resources
• Searching and finding
• Interoperability between educational collections
(50+)
• Data exchange between schools and
government
• Structuring content in Virtual Learning
Environments (VLEs)
• Monitoring learners
• Data exchange test results
Growing number of vocabularies (88)
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CZP 1.7 structure - LOMv1.0
CZP 1.8 aggregation level - LOMv1.0
CZP 1.8 aggregation level - Recommended
CZP 2.2 status - LOMv1.0
CZP 2.3.1 lifecycle contribute role LOMv1.0
CZP 3.2.1 metametadata contribute role LOMv1.0
CZP 4.4.1.1 technical requirement type LOMv1.0
CZP 4.4.1.2 technical requirement name operating system - LOMv1.0
CZP 4.4.1.2 technical requirement name operating system - mobile devices (Draft)
CZP 4.4.1.2 technical requirement name webbrowser - LOMv1.0
CZP 5.1 interaction type - LOMv1.0
CZP 5.2 learning resource type - LOMv1.0
CZP 5.2 learning resource type Recommended
CZP 5.3 interactivity level - LOMv1.0
CZP 5.4 semantic density - LOMv1.0
CZP 5.5 intended end user role - LOMv1.0
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CZP 9.2 classification - MBO skill level Reference framework for language and
mathatics (Draft)
CZP 9.2 classification - PO discipline Subject indicators for primary education
(Draft)
CZP 9.2 classification - VO discipline Subject indicators for secundary education
CZP (Submitted) 5.2 NME learning material
types
CZP (Submitted) 6.2 copyrights and other
restrictions - NL-LOM
CZP (Submitted) 9.2 classification algemeen discipline - Economy learning
domains
CZP (Submitted) 9.2 classification - general
competency - NME competencies within
methods
CZP (Submitted) 9.2 classification - general
discipline - Arithmatic learning domains
CZP (Submitted) 9.2 classification - general
discipline - Language learning domains
CZP (Submitted) 9.2 classification - general
discipline - LB domains, dimensions and
Inconsistency in vocabulairies
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Users
Function
Naming
Location
Relations
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Versions
Metadata
Structure
Coverage
Communication
Vocabulary framework
Level 1
Dutch
Boston
• One master set of
unique terms
(>>5000)
• Clear classification
of terms
• Vocabularies as
collections
• Clear relations
between subsets
Water
Level 2
English
Explain why some people
think that Poitiers was a
Roman Capital
Geography
Mathematics
Human
Care
Biology
Chemistry
Electrical
enignering
Programming
Narrow Term
Classification
Framework
Learning
objectives
Educational
Organizational
Levels
Content
Technical
Vocabularies as Collections
Subjects
Electrical
enignering
Science
English
Primary
education
Mathematics
Secondary
education
Dutch
Geography
Program
ming
Human
Care
Vocational
education
Biology
Chemistry
Relations
Boston
Content
2nd grade
secondary education
Explain why Boston
is important
Levels
Learning
objectives
Semantic vocabularies
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Terms with multiple meanings like Boston
– Each meaning a unique identifier
– Terms have a shared caption
– Shared captions are also used as identifier
– Describing learning materials most specific
• ID: UUID1
• Description: Boston the city in England
• Caption; Boston
• Classification: Content
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ID: UUID2
Description: Boston the band
Caption; Boston
Classification: Content
Vocabularies
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Geography Narrower Term Cities in England
Cities in England Narrower Term Boston
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Vocabulary
– UUIDA Narrower Term UUIDB
– UUIDB Narrower Term UUID2
Thank you!
• More information
– Allard Strijker
– a.strijker@slo.nl