Europeana Data Model

Antoine Isaac

Scientific Coordinator, Europeana

American Art Collaborative LOD Meeting

Smithsonian American Art Museum, April 29, 2013

What Europeana gets (and makes available)

Descriptive metadata

Link to digital objects online

So far: ESE records

europeana:dataProvider

europeana:provider

europeana:isShownAt

europeana:isShownBy

europeana:object

europeana:rights with controlled values (Public Domain, CC-BY, etc)

dc:contributor, dc:creator, dc:date, dc:format, dc:identifier, dc:language, dc:publisher, dc:relation, dc:source, dcterms:alternative, dcterms:extent, dcterms:temporal, dcterms:medium, dcterms:created, dcterms:provenance, dcterms:issued, dcterms:conformsTo, dcterms:hasFormat, dcterms:isFormatOf, dcterms:hasVersion, dcterms:isVersionOf, dcterms:hasPart, dcterms:isPartOf, dcterms:isReferencedBy, dcterms:references, dcterms:isReplacedBy, dcterms:replaces dcterms:isRequiredBy, dcterms:requires dcterms:tableOfContents

europeana:type

IssuesESE is a flat model

No links between cultural objects or between objects and context entities (persons, places)

just strings (with no language info)

Mixed data

real object, digital representation, provider – all in one record

A lot of mapping quality problems.

• E.g., dc:date should be a date related to the original object but is often the date of digitisation

EDM Requirements

1. Distinguish the real object (painting, book) from its digital representation

2. Distinguish the object from its metadata record

3. Allow multiple records for same objectcontaining potentially contradictory statements about an object

4. Support for objects that are composed of other objects

hierarchies

5. Be compatible with different levels of description

Generic/interoperable vs. specific/domain-centered

6. Flexible support for describing contextual resources, including concepts

7. Re-use and extend elements from existing standards

A Collaborative EffortEuropeana v1.0 WP3

Ca. 60 participants

“Fish tank” development

Many presentations in the network and beyond

(Evolving) specifications available since 2009

Cross-community development

Involving library, archive and museum experts

http://europeanalabs.eu/wiki/WP1CommunityMeetingMuseums

A Collaborative Effort

EDM makes Europeana ready to ingest metadata that is closer to specific community concerns

But still mapped to common elements

Europeana & partners can develop EDM “profiles” upon which everyone could build specific functionality

Based on best practices from sector or domain level

EDM is consolidated with partners who re-use it

Europeana providers, DPLA

EDM Classes

EDM Properties (excluding ESE)

General points

• All resources should have an identifier

• Most values can be either be a literal or a reference

• It is recommended to use xml:lang attributes on literals

• Use the most precise (sub) property available.

• Later, providers will be able to specialize to EDM

• Re-use elements from other vocabularies

• SKOS, Dublin Core, RDA, CIDOC-CRM (via mappings)

ore:Aggregation(Identifier of aggregation)

edm:WebResource(Identifier of web resource)

edm:ProvidedCHO(Identifier of real object)

An aggregation with a provided CHO and web resource(s)

The three core classes

edm:aggregatedCHO

edm:hasView

Properties for edm:Aggregation

Mandatory:

edm:aggregatedCHO

edm:dataProvider

edm:isShownBy or

edm:isShownAt

edm:provider

edm:rights

Optional:

edm:hasView

edm:object

dc:rights

edm:ugc

The aggregation represents the set of related resources about one real object contributed by one provider. It carries the metadata that is about the whole set

edm:aggregation with metadataProperties for the ore:Aggregation http://www.mimo-db.eu/UEDIN/214

EDM properties Corresponding values in the original dataedm:aggregatedCHO #UEDIN:214

edm:hasView http://www.mimo-db.eu/media/UEDIN/VIDEO/0032195v.mpg

edm:hasView http://www.mimo-db.eu/media/UEDIN/AUDIO/0032195s.mp3

edm:hasView http://www.mimo-db.eu/media/UEDIN/IMAGE/0032195c.jpg

edm: dataProvider University of Edinburgh

edm:Provider MIMO - Musical Instrument Museums Online

edm:rights http://creativecommons.org/publicdomain/zero/1.0/

edm:isShownBy http://www.mimo-db.eu/media/UEDIN/IMAGE/0032195c.jpg

edm:object http://www.mimo-db.eu/media/UEDIN/IMAGE/0032195c.jpg

Properties for edm:ProvidedCHO

dc:contributor, dc:creator, dc:date, dc:format, dc:identifier, dc:language, dc:publisher, dc:relation, dc:source, dcterms:alternative, dcterms:extent, dcterms:temporal, dcterms:medium, dcterms:created, dcterms:provenance, dcterms:issued, dcterms:conformsTo, dcterms:hasFormat, dcterms:isFormatOf, dcterms:hasVersion, dcterms:isVersionOf, dcterms:hasPart, dcterms:isPartOf, dcterms:isReferencedBy, dcterms:references, dcterms:isReplacedBy, dcterms:replaces dcterms:isRequiredBy, dcterms:requires dcterms:tableOfContents

edm:isNextInSequence

edm:isDerivativeOf

edm:currentLocation…

The ProvidedCHO is the cultural heritage object which is the subject of the package of data that has been submitted to Europeana.

ExampleProperties for the edm: ProvidedCHO: #UEDIN:24

EDM properties Corresponding values in the original data

dc:date Circa 1840

dc:description Technical description: Brass; ligature fitting on bell section at joint; stockings on main slides. with one coil, angled to face forwards. Repair History: Main slide possibly not original (tenon of slide section of joint is tapered, bell section joint for cylindrical tenon)

dc:title Buccin trombone.Nominal pitch: B?

dc:type http://www.mimo-db.eu/InstrumentsKeywords/4378

edm:type IMAGE

WebResource

One or more digital representations of the provided cultural heritage object.

Properties:

dc:rights

edm:rights

dc:format

dcterms:isPartOf

edm:isNextInSequence

…

edm:WebResources with metadata

Properties for the edm:WebResource http://www.mimo-db.eu/media/UEDIN/VIDEO/0032195v.mpgEDM properties Corresponding values in the original dataedm:rights http://creativecommons.org/licenses/by-nc-sa/3.0/

Properties for the edm:WebResource http://www.mimo-db.eu/media/UEDIN/AUDIO/0032195s.mp3

EDM properties Corresponding values in the original data

edm:rights http://creativecommons.org/licenses/by-nc-sa/3.0/

Properties for the edm:WebResource http://www.mimo-db.eu/media/UEDIN/IMAGE/0032195c.jpgEDM properties Corresponding values in the original dataedm:rights http://creativecommons.org/licenses/by-nc-sa/3.0/

NB: digital representations may have different rightsCould have format data etc.

Contextual resources

edm:Agent

foaf:name

skos:altLabel

rdaGr2:biographicalInformation

rdaGr2:dateOfBirth

…

skos:Concept

skos:prefLabel

skos:altLabel

skos:broader

skos:related

skos:definition….

edm:TimeSpanskos:prefLabel

dcterms:isPartOf

edm:begin

edm:end

….

edm:Placewgs84_pos:lat

wgs84_pos:long

skos:prefLabel

skos:note

dcterms:isPartOf….

Example - edm:Place and skos:Concept

Properties for skos:Concept http://www.mimo-db.eu/InstrumentsKeywords/4378 EDM properties Corresponding values in the original dataskos:PrefLabel xml:lang="en" Buccin

Properties for skos:Concept http://www.mimo-db.eu/HornbostelAndSachs/356 EDM properties Corresponding values in the original dataskos:PrefLabel xml:lang="en" 423.22 Labrosones with slides

Properties for edm:Place http://sws.geonames.org/3017382/ EDM properties Corresponding values in the original dataskos:PrefLabel xml:lang="en" France

Model for representing metadata enrichments

Contextual resources from providers

Their thesauri, gazetteers, etc.

Enrichment (multilingual) by Europeana

Geonames, GEMET, dbPedia

Enrichment by third-parties?

Europeanaaggregation

Enriched metadata

v

Provider aggregation

Multiple providers, multiple aggregations

Take-home message

Not perfect, but making progress

Data granularity

Data interlinking and enriching

Re-use and interoperability

More at http://pro.europeana.eu/edm-documentation

Thank you

Antoine Isaac

aisaac@few.vu.nl