1. EDM specification for DM2E
Julia Iwanowa - Evelyn Dröge - Steffen Hennicke
DM2E All-WP-Meeting 2
November 30, 2012
Vienna
co-funded by the European Union

2. Agenda
1) From EDM to DM2E
2) EDM: Definitions and Examples
3) DM2E specification of the EDM
− Working approach
− Class and property extensions in DM2E
− Namespaces, Download and Documentation
4) Wanted: A new name for our specification
5) Outlook
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3. From EDM to DM2E
• Our starting point:
EDM v53, 23.01.2012
– Latest OWL representation of the EDM
– Classes, properties and descriptions
• DM2E specification
DM2E v0.1, 22.10.2012
– Additional classes and properties
– Deletion of unneeded properties
– Adjustment of property descriptions
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4. Europeana Data Model
Issue: There is not only one EDM definition...
1. PDF documentation (“paper version”)
– EDM Definition v5.2.3
– EDM Mapping Guidelines v1.0.1
→ http://pro.europeana.eu/edm-documentation
2. OWL implementation
– EDM v53
→ http://europeanalabs.eu/browser/europeana/trunk/ROOT/src/main/
webapp/schemas/edm/rdf/EDM-v523-120123.owl
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5. EDM Example
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6. EDM Example
Reuse of external vocabularies in EDM
dc:creator Dublin Core Metadata Element Set
Range: -
dct:creator DCMI Metadata Terms
Range: dct:Agent
DC dct:creator rdfs:SubPropertyOf dc:creator
EDM dc:creator rdfs:SubPropertyOf edm:hasMet
EDM Definition v5.2.3, p. 34
DM2Edct:creator
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7. DM2E Specification v0.1
• Goal: Creation of an EDM specification
for manuscripts
• Based on Deliverables 1.1 and 2.1
• Extends the EDM by new classes and properties
• Makes the model easier by deleting properties that are
not relevant in DM2E
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8. DM2E specification
How was the EDM extended?
• Results from mapping workshops with
SBB, MPIWG, UIB
– Extension requirements of all providers:
→ https://dm2e.hu-berlin.de/redmine/projects/wp2/wiki/
EDM+_extension_requirements
– Intellectual mappings for MAB 2 and TEI:
→ https://docs.google.com/spreadsheet/ccc?key=0AnNwow7J1RwmdE00
djhTTnlaOW1iUHFjNnhtQ3hxLWc&pli=1#gid=0
• Ingestion of other provider feedback (UBER)
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9. DM2E specification
• Namespaces:
– http://data.dm2e.eu/schemas/[edmplus]/0.1/
– http://data.dm2e.eu/data/
• Missing features:
– External vocabularies are still missing
(except some BIBO properties)
– Versioning and Events need to be modelled
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10. Connection to EDM
„We expect that many providers, while submitting data to
Europeana, will be interested in submitting descriptions that fit their
own specific level of interest. The key to ensure interoperability at
the semantic level is mappings, following common practice in the
Semantic Web framework.
[…]
Such mappings are typically achieved in RDF by asserting semantic
Relationships between the specific constructs and the core ones.
Those can take the form of statements using
rdfs:subClassOf or rdfs:subPropertyOf.“
http://pro.europeana.eu/edm-documentation
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11. EDM class taxonomy
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12. DM2E class extensions
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13. DM2E property extensions
• Property extensions in
– ore:Aggregation
Creation, version, modification
– edm:ProvidedCHO
Title, manuscript components, person roles
– edm:Agent
Relation to other agents
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14. DM2E property extensions
Datatype
Properties
Object
Properties
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15. Download and Documentation
• Documentation
→https://dm2e.hu-berlin.de/redmine/ attachments/240/EDM_Plus_v0.1.pdf
• OWL file
→ https://dm2e.hu-berlin.de/redmine/ attachments/242/EDM_Plus_v0.1.owl
• Online via neologism
→http://data.dm2e.eu/dm2e/
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16. Download and Documentation
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17. Next steps
• Include input of ONB, NLI and EAJC
• Further development: Versioning and Events
• Interlinking with other vocabularies
– bibo:Manuscript unpublished document draft
– fabio:Manuscript not intended to describe
– dm2e:Manuscript a handwritten manuscript
→ First stable release of the DM2E specification in
April 2013!
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18. Name discussion
• We need a name for the EDM specification
• Suggestions:
(1) DM2EDM Digitised Manuscripts 2 EDM
(2) DM2E Digitised Manuscripts 2 Europeana
(3) EMDM Europeana Manuscript Data Model
(4) EMM Europeana Manuscript Model
• Please vote for your favourite!
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19. https://dm2e.hu-berlin.de/redmine/projects/wp2/wiki
THANK YOU!