DCAT Implementations

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This page tracks existing usages of DCAT. If you're using DCAT please tell us at public-gld-comments@w3.org. Implementation reports are an essential part of determining whether a technology is ready to become a W3C Recommendation.

Dublinked

http://www.dublinked.com/

URL: http://dublinked.com/datastore/datasets/dataset-059.php

Description: This is a page of a dataset that is part of the Dublinked portal. RDF data is embedded in the HTML page as RDFa.

RDF data extracted:

_:_51dffed2-da05-43cd-8fe2-1c6aab7b45ba <http://www.w3.org/2004/02/skos/core#prefLabel> _:_69110294-ae17-4362-904f-6362e2a89aa9 .
_:_3330b4de-01e7-4754-8f96-d222376cf3ed <http://www.w3.org/2004/02/skos/core#prefLabel> _:_c0b127bf-22ba-4f97-a042-c300785d9b02 .
_:_3330b4de-01e7-4754-8f96-d222376cf3ed <http://www.w3.org/2004/02/skos/core#prefLabel> _:_6c29a010-8d54-4155-b132-8c8cb18cbf03 .
_:_c0b127bf-22ba-4f97-a042-c300785d9b02 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2004/02/skos/core#Concept> .
_:_bb66112c-2c94-46c1-b02c-f8c95862d9fe <http://xmlns.com/foaf/0.1/homepage> <http://dublinked.ie/datastore/by-agency/FCC.php> .
_:_bb66112c-2c94-46c1-b02c-f8c95862d9fe <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Organisation> .
_:_bb66112c-2c94-46c1-b02c-f8c95862d9fe <http://www.w3.org/2000/01/rdf-schema#label> "Fingal County Council" .
_:_f3d4cab0-dcfb-4fc4-b267-b729f0c2bb57 <http://www.w3.org/ns/dcat#size> "85 kB" .
_:_f3d4cab0-dcfb-4fc4-b267-b729f0c2bb57 <http://www.w3.org/ns/dcat#bytes> "87879" .
_:_f3d4cab0-dcfb-4fc4-b267-b729f0c2bb57 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/dcat#Distribution> .
_:_f3d4cab0-dcfb-4fc4-b267-b729f0c2bb57 <http://www.w3.org/ns/dcat#accessURL> <http://www.dublinked.ie/datastore/server/FileServerWeb/FileChecker?metadataUUID=56631873207945f29595a3b44957b6f7&filename=FCC_Beaches_P20110804-1444.kml> .
_:_f3d4cab0-dcfb-4fc4-b267-b729f0c2bb57 <http://purl.org/dc/terms/format> ".kml" .
_:_6c29a010-8d54-4155-b132-8c8cb18cbf03 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2004/02/skos/core#Concept> .
_:_85946912-3208-4e7a-8f78-97b0f843844f <http://www.w3.org/ns/dcat#size> "776 bytes" .
_:_85946912-3208-4e7a-8f78-97b0f843844f <http://www.w3.org/ns/dcat#bytes> "776" .
_:_85946912-3208-4e7a-8f78-97b0f843844f <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/dcat#Distribution> .
_:_85946912-3208-4e7a-8f78-97b0f843844f <http://www.w3.org/ns/dcat#accessURL> <http://www.dublinked.ie/datastore/server/FileServerWeb/FileChecker?metadataUUID=56631873207945f29595a3b44957b6f7&filename=FCC_Beaches_P20110829-2200.csv> .
_:_85946912-3208-4e7a-8f78-97b0f843844f <http://purl.org/dc/terms/format> ".csv" .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://www.w3.org/ns/dcat#distribution> _:_85946912-3208-4e7a-8f78-97b0f843844f .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://www.w3.org/ns/dcat#distribution> _:_f3d4cab0-dcfb-4fc4-b267-b729f0c2bb57 .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://www.w3.org/ns/dcat#distribution> _:_35bdaa3e-d019-4e20-a7b8-fd76d8d0e29d .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://www.w3.org/ns/dcat#keyword> "beaches" .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://purl.org/dc/terms/licence> "PSI Licence: http://data.fingal.ie/licence/licence.pdf" .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://www.w3.org/ns/dcat#theme> _:_3330b4de-01e7-4754-8f96-d222376cf3ed .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://purl.org/dc/terms/description> "Location of Beaches in Fingal County Council\nSpatial Projection: WGS84" .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/dcat#Dataset> .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://purl.org/dc/terms/updated> "2009-01-30" .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://purl.org/dc/terms/issued> "2011-12-07" .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://purl.org/dc/terms/subject> _:_51dffed2-da05-43cd-8fe2-1c6aab7b45ba .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://purl.org/dc/terms/title> "Beaches with location" .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://purl.org/dc/terms/created> "2009-01-30" .
<http://dublinked.ie/datastore/datasets/dataset-059> <http://purl.org/dc/terms/publisher> _:_bb66112c-2c94-46c1-b02c-f8c95862d9fe .
_:_35bdaa3e-d019-4e20-a7b8-fd76d8d0e29d <http://www.w3.org/ns/dcat#size> "1 kB" .
_:_35bdaa3e-d019-4e20-a7b8-fd76d8d0e29d <http://www.w3.org/ns/dcat#bytes> "1847" .
_:_35bdaa3e-d019-4e20-a7b8-fd76d8d0e29d <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/dcat#Distribution> .
_:_35bdaa3e-d019-4e20-a7b8-fd76d8d0e29d <http://www.w3.org/ns/dcat#accessURL> <http://www.dublinked.ie/datastore/server/FileServerWeb/FileChecker?metadataUUID=56631873207945f29595a3b44957b6f7&filename=FCC_Beaches_P20110901-1240.xml> .
_:_35bdaa3e-d019-4e20-a7b8-fd76d8d0e29d <http://purl.org/dc/terms/format> ".xml" .
_:_69110294-ae17-4362-904f-6362e2a89aa9 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2004/02/skos/core#Concept> .

Summary:

DCAT Class Properties
Dataset dcat:distribution, dcat:keyword, dcat:theme, dct:created, dct:description, dct:issued, dct:license, dct:publisher, dct:subject, dct:title, dct:updated
Distribution dct:format, dcat:accessURL, dcat:size(deprecated), dcat:bytes (deprecated)

Apart from the use of two deprecated properties, the RDF data of Dublinked is is in conformance with DCAT.

European Union Open Data Portal

URL: http://open-data.europa.eu/

Description: Datasets are described using some DCAT terms and available via a SPARQL endpoint at http://open-data.europa.eu/en/linked-data The report below is based on querying the end point on September, 22nd 2013.

Summary:

DCAT Class Properties
Dataset dcat:distribution, dcat:granularity (deprecated), dcat:quality(deprecated), dcat:theme, dct:created, dct:description, dct:identifier, dct:issued, dct:language, dct:license, dct:publisher, dct:spatial, dct:subject, dct:temporal, dct:title
Distribution dct:format, dcat:accessURL, dcat:size(deprecated), dcat:bytes (deprecated)
Download (deprecated)
WebService (deprecated)

The European Union Open Data Portal does not conform to DCAT as it uses different terms than recommended by DCAT for keyword and contactPoint. Terms from ontology defined at http://open-data.europa.eu/files/ec-odp.owl are used and these terms are not defined as subproperties of DCAT terms.

Open Data at University of Southampton

URL: SPARQL endpoint at http://sparql.data.southampton.ac.uk

Description: The data is organized in a number of catalogs and datasets but no distributions. Catalogs are not connected to the datasets. The report below is based on querying the end point on October, 14th 2013.

DCAT Class Properties
Catalog dcat:accessURL, dct:creator, dct:description, dct:publisher, dct:license, dct:title, foaf:homepage, rdfs:label
Dataset dcat:accessURL, dct:creator, dct:description, dct:publisher, dct:license, dct:title, foaf:homepage, rdfs:label

DKAN - demo site

URL: http://demo.getdkan.com/dataset/afghanistan-election-districts

Description: DKAN is a Drupal Open Data portal and a clone of the CKAN Data portal software: https://drupal.org/project/DKAN. DKAN provides a demo site at http://demo.getdkan.com/dataset where DCAT data is embedded as RDFa.

RDF data extracted:

<http://demo.getdkan.com/tags/politics> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2004/02/skos/core#Concept> .
<http://demo.getdkan.com/tags/politics> <http://www.w3.org/2000/01/rdf-schema#label> "politics"@en .
<http://demo.getdkan.com/tags/politics> <http://www.w3.org/2004/02/skos/core#prefLabel> "politics"@en .
<http://demo.getdkan.com/tags/country-afghanistan> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2004/02/skos/core#Concept> .
<http://demo.getdkan.com/tags/country-afghanistan> <http://www.w3.org/2000/01/rdf-schema#label> "country-afghanistan"@en .
<http://demo.getdkan.com/tags/country-afghanistan> <http://www.w3.org/2004/02/skos/core#prefLabel> "country-afghanistan"@en .
<http://demo.getdkan.com/sites/default/files/styles/medium/public/6944276022_06ea83e528_4.jpg?itok=nkaZNZKt> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Image> .
<http://demo.getdkan.com/tags/election> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2004/02/skos/core#Concept> .
<http://demo.getdkan.com/tags/election> <http://www.w3.org/2000/01/rdf-schema#label> "election"@en .
<http://demo.getdkan.com/tags/election> <http://www.w3.org/2004/02/skos/core#prefLabel> "election"@en .
<http://demo.getdkan.com/tags/transparency> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2004/02/skos/core#Concept> .
<http://demo.getdkan.com/tags/transparency> <http://www.w3.org/2000/01/rdf-schema#label> "transparency"@en .
<http://demo.getdkan.com/tags/transparency> <http://www.w3.org/2004/02/skos/core#prefLabel> "transparency"@en .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/dcat#Dataset> .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://rdfs.org/sioc/ns#Item> .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Document> .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://purl.org/dc/terms/modified> "2013-04-19"@en .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://www.w3.org/ns/dcat#accessURL> <http://demo.getdkan.com/dataset/resource/06d7a4c5-95b6-4ba7-9731-cc7a6fe51d23> .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://purl.org/dc/terms/format> "csv"@en .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://purl.org/dc/terms/publisher> "Geospatial Data Explorer Examples"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://purl.org/dc/terms/title> "Afghanistan Election Districts"@en .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://www.w3.org/ns/dcat#Distribution> "District NamescsvYou can see this data plotted on a map, by clicking on 'Map' below...Explore Data"@en .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://www.w3.org/ns/dcat#keyword> "transparency"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://www.w3.org/ns/dcat#keyword> "election"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://www.w3.org/ns/dcat#keyword> "politics"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://www.w3.org/ns/dcat#keyword> "country-afghanistan"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://purl.org/dc/terms/issued> "2012-10-30"@en .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://purl.org/dc/terms/identifier> "c7fd1701-47ac-4fb1-b369-c72c5861bec9"@en .
<http://demo.getdkan.com/dataset/afghanistan-election-districts> <http://purl.org/dc/terms/description> "This data created by the National Democratic Institute (NDI) in partnership with Development Seed, a Washington, D.C.-based online communications consultancy, is designed to make data from the August 20, 2009, Afghanistan presidential election accessible and transparent. We have provided this csv file as there is no download for the whole dataset. There are many more files on the website.\n"@en .

Summary:

DCAT Class Properties
Dataset dcat:keyword, dct:description, dct:identifier, dct:issued, dct:publisher, dct:title

DKAN does not conform to DCAT. It uses properties dcat:accessURL and dct:format at the Dataset level and not the distibution level. It does not define instances of dcat:Distribution.

vocab.deri.ie

URL: http://vocab.deri.ie/neologism/adms

Description: Neologism exports its ontologies description in ADMS. ADMS classes are defined as subclasses of DCAT classes. The data was downloaded and tested by performing RDFS closure and then analysing it by SPARQL queries.

Summary: The data uses old version of ADMS so technically it is does not conform to DCAT.