EDM Cases: Polymath Virtual Library

Xavier Agenjo

Fundación Ignacio Larramendi

xavier.agenjo@larramendi.es

Work done: Use URIs as names for things

http://www.larramendi.es/aut/FILA20120003101

Work done: Use HTTP URIs so that these things can be referred to and looked up ("dereferenced") by people and user

agents

Work done: Provide useful information about the thing when its URI is dereferenced, using standard formats such as RDF/

XML

Work done: Include links to other, related URIs in the exposed data to improve discovery of other related

information on the Web

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Some buts...• We need a stable EDM: its development is being long, with major changes and

not yet stable.

• For exchange and harvesting, we need an XSD schema stable and clearly versioned

• Phases doesn’t facilitate its application. Once it is decided to apply LOD, it’s difficult [and expensive] to be constrained by EDM implementation phases. How to proceed? Should we [CP] send all existing data and relationships? Or, should we send only data and relationships according to phases?

• Messages are not clear enough about who should apply EDM or when [Europeana Bussiness Plan 2012 – EDM Implementation Roadmap]

• What will be the benefits [for content providers and their users] of moving to EDM? What developments are foreseen to show this benefits.

More important

• Provide useful information – Not any data in EDM is good enough (or useful); granularity matters

• Include links to other URIs so that they can discover more things – It is not about converting basic Dublin Core records to RDF, which

matters are relationship with other resources and vocabularies (VIAF, DBpedia, WGS84, etc.).

– What about local resources?

– Europeana can't do everything

• [Include EDM/LOD in your real cataloging process]– MARC 21 Records– Linking data through 024– New relationships (through $4)

Authority records are the support of EDM

Cataloguing processes have to change to incorporate LOD

Facilitate the reuse of data: tools for searching and linking data to common external resouces

How to pass from MARC to LOD without losing any data?

Thank You!