1. DM2E‘s EDM Application Profile
Data Model, Mappings and Documentation
Evelyn Dröge
Berlin School of Library and Information Science, Humboldt-Universität zu Berlin
Presentation at the Meeting of National Europeana Partners
Berlin, 08.11.2013
co-funded by the European Union
2. Introducing the DM2E Project
Digitised Manuscripts to Europeana (DM2E)
• EU-funded Europeana satelite project
• Duration: Three years (2012 – 2015)
• Partners from Germany, Austria, Norway, Greece, UK and Italy
• Primary aims: To enable as many content providers as possible
to get their data into Europeana and to stimulate the creation of
new tools and services for reuse of Europeana data in the
Digital Humanities
IBI at the Humboldt-Universität zu Berlin
• Coordinates the project
• Is further involved in modeling and in evolving the technical
infrastructure
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3. DM2E: Key Aspects
• Content
– Input formats: TEI, MAB2,
MARC, EAD, METS/MODS
Database content
– Mappings to the DM2E model
• Technology
Content
Technology
Community
Building
– Mapping infrastructure
– Tools for scholars
• Community Building
– Hackathons
– Workshops
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DM2E
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5. Specialising the EDM
Domain: Manuscripts
Target groups: DM2Es data providers,
Digital Humanities community
First test data: TEI transcriptions of
Wittgensteins manuscripts from the
University of Bergen
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6. Specialising the EDM II
Creation of the DM2E model that specialises the EDM
Creation of
a first
model
Data
analysis
DM2E
model
Production
of rich
mappings
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Integration
of provider
feedback
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7. The DM2E Model
• Namespaces:
– dm2e: <http://onto.dm2e.eu/schemas/dm2e/1.0/> .
– dm2edata: <http://data.dm2e.eu/data/> .
• Additional external vocabularies
– Bibo, FaBiO, PROVIVO, VoID
• Modelling analogue to EDM
– Extensive use of properties instead of classes
E.g., 52 new properties for edm:ProvidedCHO
– If possible: direct reuse of external vocabularies
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8. DM2E Model: Class Extensions
edm:NonInfor
mationResource
edm:Place
edm:PhysicalThing
edm:Event
skos:Concept
edm:TimeSpan
bibo:Book
fabio:Chapter
dm2e:Manuscript
edm:Agent
dm2e:Work
fabio:Page
foaf:Organization
foaf:Person
…
…
Example: Direct integration into the
EDM via subclass properties.
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9. DM2E Model: Property Extensions
dm2e:artist
pro:illustrator
dm2e:composer
Example: Adding
new properties as
subproperties for
dcterms:creator
dcterms:creator.
dm2e:painter
pro:author
dm2e:writer
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11. Mappings
1. Mint
– Mapping tool by the National
Technical University of Athens
– Mapping via Drag and Drop
2. Coded Mappings
– E.g. XSLT with Oxygen
– Can be based on Mint Exports
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12. Example Mapping I: XML TEI 5 Input
Polytechnisches Journal
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13. Example Mapping II: RDF Output
Polytechnisches Journal
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14. Example Mapping III: RDF Output
Polytechnisches Journal
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18. Documentation
The DM2E model is documented in three different ways:
1. For human readers as a PDF manual.
2. For offline usage as a separate OWL file.
3. Machine-readable and online via Neologism.
→ The descriptions in all representations are equivalent.
Advantages and Disadvantages:
1. PDF: Not useful for tools but easy to read for humans.
2. OWL-File: Can easily be produced and read but the entities
are not Web-referenceable.
3. Neologism: RDF and HTML representation of entities but
shows only entities within one Namespace.
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19. Documentation: PDF and OWL
The PDF and the OWL representations can be accessed
via the project‘s website:
dm2e.eu/document/#DM2EModelSpecification
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20. Documentation: Neologism
• Vocabulary
publishing platform
• Based on Drupal
• Upload of
ontologies (RDF,
OWL)
• Creation of new
classes or
properties
onto.dm2e.eu/dm2e
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21. Next Steps
• Finalising the DM2E model
– Open issues: uncertain timespans or creators
– Consistency check
– Update to the newest EDM version
• Analysis of the mapped data
– Leading to further model optimisations
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22. Thank you for your attention!
Evelyn Dröge
Berlin School for Library and
Information Science
Humboldt-Universität zu Berlin
www.ibi.hu-berlin.de
Digitised Manuscripts to Europeana
www.dm2e.eu
evelyn.droege@ibi.hu-berlin.de
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23. References
Literature
• Dröge E., Iwanowa, I., Hennicke, S., & Eckert, K. (2013). DM2E Model V1.0
Specification. Online: http://assets.okfn.org.s3.amazonaws.com/p/dm2e/
DM2E_Model_V1.0_Specification.pdf [05.11.2013]
Images
• Ontology (Slide 4): http://openclipart.org/detail/133363/ontology-by-imad
• Piece of puzzle (Slide 10): http://openclipart.org/detail/174310/piece-of-puzzlesymetric-by-fallerton-174310
• Book (Slide 17): http://openclipart.org/detail/65815/freehand-book-by-aungkarns
• Footstep (Slide 21): http://openclipart.org/detail/left-footprint-by-anonymous
• IBI (Slide 22): http://commons.wikimedia.org/wiki/File:Berlin,_Mitte,
_Dorotheenstrasse,_Handelskammer_Berlin_02.jpg
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