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The European Data Model(EDM)
EUROPEANALOCAL NATIONAL MEETING, 17th of November, Madrid
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Moving from Europeana Semantic Elements –ESEv3.3…
• Published in July 2010• Some significant changes from V3.2.2
• Addition of: • europeana:dataProvider element containing the name of the
content/data provider
• europeana:rights element containing a statement about the licence applied to the objects
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Europeana Semantic Elements (ESE) V3.3
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…To The European Data Model (EDM)
• What is EDM?
• A new data structure for Europeana
• Will allow Europeana to move beyond ESE
• Facilitate Europeana’s participation in the Semantic Web
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Europeana Data Model (EDM)
• 1. Distinction between “provided object” (painting, book,• program) and digital representation• 2. Distinction between object and metadata record
describing an object .• 3. Allow for multiple records for same object, containing• potentially contradictory statements about an object• 4. Support for objects that are composed of other objects• 5. Standard metadata format that can be specialized• 6. Standard vocabulary format that can be specialized• 7. EDM should be based on existing standards
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Main principles
•EDM is a richer model
• Transcends domain specific metadata standards• Based on an open, cross-domain semantic web-based framework• Namespaces used in EDM: RDF, RDFS, OAI-ORE, SKOS, DC
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Europeana Data Model (EDM)
• Framework for collecting, connecting and enrichingmetadata
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Europeana Data Model (EDM)
• Enabling the generation of knowledge ..
• Allowing connections to be made between search terms
• Giving to the digitised object a new dimension allowing multiple linking between its digital representations accessible over the web
• Allowing the representation of hierarchical items
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The general picture
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EDM structure
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Difference between XML and RDF
•XML represents knowledge as ‚trees‘ •RDF represents knowledge as networks of nodes and graphs
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An example 1
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An example 2
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Aggregation of data of a provider
Provenance metadata
Aggregation
Object
Digital representation
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Multiple aggregations for multiple providers
aggregation of DMF
aggregation of Louvre
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Provides contextual information
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EDM enrichment example
Europeanadata
Providerdata
Enrichedmetadata
Enrichment
•De-duplication•Linking objects to vocabularies used in Europeana objects(persons, object types, places, periods)
•Aligning vocabularies•Linking to external resources•Cleaning metadata•Translating metadata / language tagging•Linking objects
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Future developments and implementation
• EDM has been validated by technical specialists at libraries, museums, archives and audio-visual collections
• It will be refined and tested between now and January 2011
• It is backwardly compatible with ESE, and will start to be used by data providers during 2011
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Preparation of EDM: timeline
from
January
2011
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Documentation available (current status)
• Europeana Data Model Primer (v5.1)• Europeana Data Model Specification (v5.2)• http://version1.europeana.eu/web/europeana-
project/technicaldocuments/