This page describes version 1.1 of the DCAT-AP, which is the latest release.
Note: The UML diagram was corrected on 24/02/2017, fixing an error by removing the dct:creator property.
In February 2015, the ISA Programme of the European Commission launched an activity to revise DCAT-AP aiming to address requests for change coming from real-life implementation of the DCAT-AP. Read more about the revision process here.
The DCAT Application profile for data portals in Europe (DCAT-AP) is a specification based on W3C's Data Catalogue vocabulary (DCAT) for describing public sector datasets in Europe. Its basic use case is to enable a cross-data portal search for data sets and make public sector data better searchable across borders and sectors. This can be achieved by the exchange of descriptions of data sets among data portals.
The specification of the DCAT-AP was a joint initiative of DG CONNECT, the EU Publications Office and the ISA Programme. The specification was elaborated by a multi-disciplinary Working Group with representatives from 16 European Member States, some European Institutions and the US.