1. A look at the Europeana
Data Model
Carlo Meghini, Stefan Gradmann, Antoine Isaac
EUScreen Workshop on Metadata
Mykonos, June 24, 2010
2. Rationale
• Rich functionality (semantic search) requires rich
representations
• Rich representations exists: collect them (1)
• Interoperability is the problem:
• models: connect (2)
• values: normalize (3)
• Multilingualism cuts across
• Need a lot of knowledge: link (4)
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3. Tools
• Collect existing metadata as they are: OAI ORE
• Connect classes and properties: basic ontology
(CIDOC CRM, DC, SKOS, VRA) + mappings
• Web architecture, in particular URIs
• Link metadata to existing resources
• Linked Open Data
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4. History
• ESE
• quickly set up prototypes
• keep barriers low
• build on Dublin Core
• Rhine based on ESE V3.2
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5. EDM development
• version 1: initial surrogate model with rich
set of contextualization properties
• version 2: OAI-ORE aggregations and
SKOS concepts
• release 2: 1st Europeana plenary
• version 3
• version 4: IRW ontology
• release 1: December 2009
• release 2: February 2009
• version 5: integration of ESE, evaluation
through domain meetings
• release 1: April 2010
• release 2: next week
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9. The Example - 1
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10. The Example - 2
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11. Providing an aggregation of digital resources for
a cultural object
RDF graph with specific conventions for resource types and sub-properties
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12. Has View
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13. Modeling Mona Lisa
• There’s a resource that stands for Mona Lisa as an object in Museum
• Ideally identified by a URI assigned by Direction des musées de France
• classified using a DMF ontology
• But DMF has a specific description for that object
• Other institutions might have a different one!
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14. So we create Proxies
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15. Becomes really handy when there are several
records for a same object
Berlin, June 24, 2010
Mykonos, Jan. Europeana Librarian
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25-26, 2010 Community
Meeting20100324
16. And there are always several information
providers: think of Europeana!
Berlin, June 24, 2010
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25-26, 2010
17. Landing Page
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18. Back to proxies: don’t look at that!
Berlin, June 24, 2010
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25-26, 2010
19. Remember: one provider may not need to submit
data for everything
Europeana should take care of maintaining the whole structure
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20. Now for metadata describing the object
• EDM is flexible
• Common, simple object-centric approaches
• More sophisticated event-aware approaches
• In fact, any approach?
• Crucial principle: mapping
• Keep original metadata
• Map to more general interoperability level
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