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DM2E Data Model

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Presentation on the DM2E data model, a specialisation of the EDM for the domain of (handwritten) manuscripts. Held at the EDM-Tutorial (22.09.) at the TPDL 2013 on Malta.

Presentation on the DM2E data model, a specialisation of the EDM for the domain of (handwritten) manuscripts. Held at the EDM-Tutorial (22.09.) at the TPDL 2013 on Malta.

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  • WP1 aggregates, analysis, and maps data from content providers. WP2 converts data to the DM2E data model and delivers it to Europeana and WP3 and exposes it as LOD. WP3 uses the DM2E data in Pundit and exposes the result of annotation activities as LOD. OMNOM: Bundle von Webservices für die Mapping und Konversion nach EDM/DM2E.
  • EDM (and Europeana) offers the chance for a broadly accepted generic interoperability layer which at the same time allows for easy specialisation of its semantics.
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    • 1. co-funded by the European Union The DM2E Data Model Specialising the EDM for Handwritten Manuscripts Steffen Hennicke Berlin School of Library and Information Science Humboldt-Universität zu Berlin 22. September 2013 EDM-Tutorial at TPDL 2013
    • 2. EDM-Tutorial, TPDL 2013, 22.09.2013 222.09.2013 Digitised Manuscripts to Europeana • Consortium with partners from Germany, Austria, Norway, Greece, UK, France, and Italy funded by the EU (2012-2015). • DM2E works on – a tool-chain for data migration to Europeana and the LOD Web (OMNOM), – a digital research environment for the Digital Humanities (PUNDIT), – an open community of cultural heritage professionals (OPENGLAM)
    • 3. EDM-Tutorial, TPDL 2013, 22.09.2013 322.09.2013 DM2E Architecture WP 1 OMNOMOMNOM (MINT)(MINT) DM2E DataDM2E Data ModelModelWP 2 PUNDITPUNDIT DigitalDigital HumanitiesHumanities WP 3
    • 4. EDM-Tutorial, TPDL 2013, 22.09.2013 422.09.2013 Content • Wittgenstein Source (UiB): Manuscripts by Ludwig Wittgenstein TEI-XMLTEI-XML TEI-XMLTEI-XML • descriptive metadatadescriptive metadata • object dataobject data • digitised manuscriptsdigitised manuscripts • transcriptstranscripts • pages, paragraphs etc.pages, paragraphs etc.
    • 5. EDM-Tutorial, TPDL 2013, 22.09.2013 522.09.2013 Content Islamic Scientific ManuscriptIslamic Scientific Manuscript Initiative (MPWIG)Initiative (MPWIG) Relational DatabaseRelational Database Nietzsche Source –Nietzsche Source – DigitaleDigitale Faksimile GesamtausgabeFaksimile Gesamtausgabe (CRNS)(CRNS) ProperietaryProperietary European Association forEuropean Association for Jewish CultureJewish Culture (EAJC)(EAJC) EADEAD Codices and Austrian BooksCodices and Austrian Books Online (ONB)Online (ONB) MARCXML/MAB2MARCXML/MAB2 118.000+ items with118.000+ items with 20.006.930+ pages20.006.930+ pages
    • 6. EDM-Tutorial, TPDL 2013, 22.09.2013 622.09.2013 DM2E Data Model • Semantically and structurally heterogeneous data – e.g. EAD, METS, TEI, MARCXML and MAB2, relational databases, proprietary schemas • The Europeana Data Model (EDM) is made for this scenario! – provides a generic semantic interoperability layer – enables the definition of “applications profiles” which may address the needs of specific communities • The DM2E Data Model (DM2E) – is an “application profile” of the EDM for the domain of handwritten manuscripts – retains rich descriptions by specialising the EDM
    • 7. EDM-Tutorial, TPDL 2013, 22.09.2013 722.09.2013 What Does “Specialising” Mean? • RDF(S) allows the specialisation of EDM classes and properties – use of rdfs:subClassOf – use of rdfs:subPropertyOf • An “application profile” typically also includes – additional ontological restrictions – documentation
    • 8. EDM-Tutorial, TPDL 2013, 22.09.2013 822.09.2013 Guidelines for Specialising • Empirical analysis of provided source metadata • Iterative mappings to the EDM • Close cooperation with data providers – agree on shared conceptualisations • Create rich and connected representations – retain original semantics as much as possible – use existing URIs of resources – assign a class to the resources (rdf:type)
    • 9. EDM-Tutorial, TPDL 2013, 22.09.2013 922.09.2013 Reuse of Existing Namespaces • Create new classes or properties in the DM2E-Namespace only if there is no other suitable option available – reuse existing namespaces (ontologies) – mind existing semantics (scope notes, domains, ranges) • Types, roles and relations between agents – Friend-of-a-Friend (FOAF) [FOAF] (types of agents) – Publishing Roles Ontology (PRO) [SPAR] (roles of agents in the publication process) – VIVO [VIVO] (types of agents) • Detailed semantics on bibliographic entities – FRBR-aligned Bibliographic Ontology (FaBiO) [SPAR] – Citation Typing Ontology (CiTO) [SPAR] – Bibliographic Ontology (BIBO) [BIBO]
    • 10. EDM-Tutorial, TPDL 2013, 22.09.2013 1022.09.2013 Classes • 23 new or reused classes, mainly for – physical and conceptual parts of a handwritten manuscripts • as found in our source metadata – different types of Agents
    • 11. EDM-Tutorial, TPDL 2013, 22.09.2013 1122.09.2013 edm:PhysicalThing Physical and tangible aspects of handwritten manuscripts.
    • 12. EDM-Tutorial, TPDL 2013, 22.09.2013 1222.09.2013 Contextual Resources: Concept Conceptual or logical aspects of handwritten manuscripts.
    • 13. EDM-Tutorial, TPDL 2013, 22.09.2013 1322.09.2013 Contextual Resources: Agent Different types of agents.
    • 14. EDM-Tutorial, TPDL 2013, 22.09.2013 1422.09.2013 Properties • Property-centric modelling – more than 50 new properties • Documentation for the DM2E Data Model contains only EDM properties which are utilized – to keep the documentation clear – e.g. dcterms:replaces, dc:source, or dc:conformsTo are not used • Domain and Range Restrictions – some OWL-Restrictions on properties in order to encourage the use of specific resources of a specific type, e.g. • CHO hasPart CHO • WebResource hasPart WebResource • Some EDM-Properties are mandatory in DM2E – dc:type: at least one of the physical (e.g. dm2e:Page) or logical (e.g. dm2e:Paragraph) aspects – dc:subject: ideally an URI from a controlled vocabulary
    • 15. EDM-Tutorial, TPDL 2013, 22.09.2013 1522.09.2013 ore:Aggregation • Properties for creation, version, and modification of records extended to the Aggregation – dcterms:rightsHolder, dcterms:creator, dc:contributor with range edm:Agent – dcterms:created with range Literal (xsd:DateTime) – dcterms:modified with range Literal (xsd:DateTime) • dm2e:hasAnnotatableVersionAt – for Pundit to include object data – specific to the DM2E infrastructure
    • 16. EDM-Tutorial, TPDL 2013, 22.09.2013 1622.09.2013 edm:ProvidedCHO • About 49 new properties with the domain edm:ProvidedCHO – focus on object-centric descriptions – event-centric descriptions rely on the existing EDM facilities • Rich description of the object of interest – prepare for future scholarly applications – enable usage scenarios which need an interoperability umbrella and rich semantics – example: Pundit instance for the “Wittgenstein Incubator”
    • 17. EDM-Tutorial, TPDL 2013, 22.09.2013 1722.09.2013 Description domain: edm:ProvidedCHO range: rdfs:Literal
    • 18. EDM-Tutorial, TPDL 2013, 22.09.2013 1822.09.2013 Related Resources • Descriptive and contextual relations of the ProvidedCHO to other resources domain: edm:ProvidedCHO range: various types of resources
    • 19. EDM-Tutorial, TPDL 2013, 22.09.2013 1922.09.2013 Related Resources domain: edm:ProvidedCHO range: various types of resources
    • 20. EDM-Tutorial, TPDL 2013, 22.09.2013 2022.09.2013 Related Resources domain: edm:ProvidedCHO range: various types of resources
    • 21. EDM-Tutorial, TPDL 2013, 22.09.2013 2122.09.2013 Extent domain: edm:ProvidedCHO range: rdfs:Literal
    • 22. EDM-Tutorial, TPDL 2013, 22.09.2013 2222.09.2013 Identifier and Title domain: edm:ProvidedCHO range: rdfs:Literal
    • 23. EDM-Tutorial, TPDL 2013, 22.09.2013 2322.09.2013 Object Relations • Domain and range “restrictions” to encourage proper use of structural and other inter-object relations • Implemented by using owl:Restriction on classes for – dcterms:hasPart – dcterms:isPartOf – edm:isDerivativeOf – edm:isNextInSequence • Examples – edm:ProvidedCHO dcterms:hasPart edm:ProvidedCHO, – edm:WebResource dcterms:isPartOf edm:WebResource – edm:Place dcterms:isPartOf edm:Place – edm:TimeSpan dcterms:hasPart edm:TimeSpan
    • 24. EDM-Tutorial, TPDL 2013, 22.09.2013 2422.09.2013 Summary • The DM2E Data Model is an application profile of the EDM for the domain of handwritten Manuscripts • DM2E v1.0: Latest and first operational version of the DM2E data model • Work is on-going and feedback welcome!
    • 25. EDM-Tutorial, TPDL 2013, 22.09.2013 2522.09.2013 References • DM2E: http://dm2e.eu/ • Documentations: http://dm2e.eu/document/ • [VOID]: http://www.w3.org/TR/void/ • [SPAR]: http://sempublishing.sourceforge.net/ • [BIBO]: http://bibliontology.com/ • [FOAF]: http://www.foaf-project.org/ • [VIVO]: https://wiki.duraspace.org/display/VIVO/VIVO+Main+Page