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.

DCAT implementations

This is a list of DCAT datasets that were reported. The WG examined all the datasets below for compliance either fully or by looking at a sample of the data.

Reporter Shortname Description Public Link Details
Nikos Loutas [1] ODS Open Data Support, a project of DG CONNECT run by Pwc. Data harvested from a number of European open data catalogues. According to the project announcement it contains metadata of more than 31000 datasets from 8 national catalogs. website: http://opendatasupport.eu https://joinup.ec.europa.eu/community/ods/description

RDF data: http://data.opendatasupport.eu

Fadi Maali EU European Union Open Data Portal. The European Union Open Data Portal is the single point of access to a growing range of data from the institutions and other bodies of the European Union (EU). Portal: http://open-data.europa.eu

RDF: http://open-data.europa.eu/en/linked-data

Martin Alvarez-Espinar [2] CL Castile and Leon Open Data Catalog (Spain) Portal: http://www.datosabiertos.jcyl.es/ RDF: http://www.datosabiertos.jcyl.es/web/jcyl/risp/es/otros/general/1284166186527.rdf report
Martin Alvarez-Espinar [3] SP Spanish Ministry of Industry, Energy and Tourism Open Data Catalog. Portal: http://datos.gob.es/datos/

RDF: https://sede.minetur.gob.es/es-ES/datosabiertos/Documents/dcat.rdf

Fadi Maali DUB Dublinked.ie A catalog for open datasets in the Dublin region. An initiative by the Dublin Region Local Authorities (DLAs) and NUI Maynooth to facilitate data-driven innovation in urban environment. Portal: http://dublinked.ie

RDF: embedded as RDFa in the HTML page of each dataset. E.g. http://dublinked.com/datastore/datasets/dataset-059.php

John S. Erickson [4] BCO The Biological and Chemical Oceanography Data Management Office BCO-DMO. The BCO-DMO staff members are the curators of the data collections created by those respective programs, as well as more recent research awards to investigators funded by the NSF Geosciences Directorate (GEO) Division of Ocean Sciences (OCE) Biological and Chemical Oceanography Programs and Division of Polar Programs (PLR) Antarctic Sciences (ANT) Organisms & Ecosystems Program. Portal: http://www.bco-dmo.org/datasets

RDF: sent offline to the DCAT specification editors

Fadi Maali SU Open Data at University of Southampton. A catalogue of open administrative data provided by the University of Southampton. Portal: http://data.southampton.ac.uk/

RDF: http://sparql.data.southampton.ac.uk/

Fadi Maali SC semantic.ckan.net an RDF representation of the metadata available on ckan.net RDF: http://semantic.ckan.net/sparql report
Fadi Maali PH Dataset Descriptions for the Open Pharmacological Space The specification for the metadata to described datasets, and the linksets that relate them, to enable their use within the Open PHACTS discovery platform specification: http://www.openphacts.org/specs/2013/WD-datadesc-20130912/

Example RDF: https://github.com/openphacts/ops-platform-setup/blob/master/void/uniprot/uniprot_2013_06_void.ttl

Fadi Maali AIRO Third party representation of The All-Island Research Observatory (AIRO). portal:http://www.airo.ie/

RDF: SPARQL endpoint at: http://vmsgov03.deri.ie/dcat/query

Phil Archer CKAN Simple Data Catalog Interoperability Proposal. A working implementation of this proposal for CKAN catalogs is being developed within the context of the PublicData.eu project specification(draft): https://docs.google.com/document/d/1JFgk-U7so4V0aecut53JS2GPtI2tgFMShUvLoINyKQY/

RDF: sample data at https://github.com/okfn/ckanext-dcat/blob/master/examples/catalog.rdf

Fadi Maali QC The Quebec government Open Data Portal. portal: http://www.donnees.gouv.qc.ca/

RDF: example dataset http://www.donnees.gouv.qc.ca:80/geonetwork/srv/eng/rdf.metadata.get?uuid=e8059155-fb1b-4717-8474-d6278c37512b

Fadi Maali DT The DataTank, a RESTful data management system written in PHP5. It provides a datahub for publishing several data formats. The software is managed by OKFN Belgium. website: http://thedatatank.com/

RDF: sample data at: http://demo.thedatatank.com/api/dcat


DCAT - tool support

This is a list of tools that state it support to export data using DCAT.

Name Description DCAT support
Esri Geoportal Server [5] Geoportal Server is a standards-based, open source product that enables discovery and use of geospatial resources including data and services. Maps its metadata to DCAT https://github.com/Esri/geoportal-server/tree/master/support
Neologism [6] Neologism is a vocabulary publishing platform for the Web of Data, with a focus on ease of use and compatibility with Linked Data principles. Exports its data (vocabularies descriptions) in ADMS (an application profile of DCAT) Example data: http://vocab.deri.ie/neologism/adms
DKAN [7] DKAN is a Drupal Open Data portal and a clone of the CKAN Data portal software Embeds DCAT metadata in HTML pages. Example deployment can be seen at: http://demo.getdkan.com/dataset

Recommending DCAT

This is a list of projects and official specifications that recommend DCAT. Some of the implementations reported before are results of these recommendations, however the potential adoption of these recommendation can be bigger.

Name Description
DCAT Application profile for data portals in Europe (DCAT-AP) A specification based on DCAT for describing public sector datasets in Europe
Metadata specification of the Spanish government specification (Spanish)
Project Open Data A project by the White House that collects code, tools, and case studies to help agencies adopt the Open Data Policy. It provides mappings from other schemas to DCAT. Reported by James McKinney [8]

Summary of terms usage

dcat:Catalog Y Y Y Y Y Y Y Y Y
dct:title Y Y Y Y Y Y Y Y Y
dct:description Y Y Y Y Y Y Y Y
dct:issued Y Y Y
dct:modified Y Y Y Y
dct:language Y Y Y
dct:license Y Y Y Y
dct:rights (Y) (Y) (Y) (Y)
dct:spatial Y Y Y Y
foaf:homepage Y Y Y Y Y Y Y Y Y
dcat:dataset Y Y Y Y Y Y Y Y
dcat:record Y Y Y Y
dct:publisher Y Y Y Y Y Y Y
dcat:themeTaxonomy Y Y Y
dcat:Dataset Y Y Y Y Y Y Y Y Y Y Y Y Y
dct:title Y Y Y Y Y Y Y Y Y Y Y Y Y
dct:description Y Y Y Y Y Y Y Y Y Y Y Y
dct:issued Y Y Y Y Y Y Y Y Y Y
dct:modified Y Y Y Y Y Y
dct:identifier Y Y Y Y Y Y Y Y Y Y
dcat:keyword Y Y Y Y Y Y Y Y Y
dct:language Y Y Y Y
dcat:contactPoint Y Y
dct:temporal Y Y Y
dct:spatial Y Y Y Y Y Y
dct:accrualPeriodicity Y Y Y Y Y Y
dcat:theme Y Y Y Y Y Y Y Y Y
dcat:landingPage Y Y Y
dct:publisher Y Y Y Y Y Y Y Y Y Y
dcat:distribution Y Y Y Y Y Y Y Y Y Y Y
dcat:CatalogRecord Y Y Y Y
dct:title Y Y Y
dct:description Y Y Y
dct:issued Y Y Y
dct:modified Y Y Y
foaf:primaryTopic Y Y Y Y
dcat:Distribution Y Y Y Y Y Y Y Y Y Y Y
dct:title Y Y Y Y Y Y
dct:description Y Y Y Y Y
dct:issued Y
dct:modified Y
dct:license Y Y Y
dct:rights (Y) Y Y
dct:format Y Y Y Y Y Y Y Y Y
dcat:byteSize (D) (D) Y
dcat:mediaType Y Y Y Y Y
dcat:accessURL Y Y Y Y Y Y Y Y
dcat:downloadURL Y Y Y Y Y

Y uses in a compatible way

(Y) used indirectly (a sub-property of it is used)

(D) uses a deprecated version of the term