DCAT Application Profile for Data Portals in Europe – Final Draft
From the post:
The DCAT Application profile for data portals in Europe (DCAT-AP) is a specification based on the 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.
This final draft is open for public review until 10 June 2013. Members of the public are invited to download the specification and post their comments directly on this page. To be able to do so you need to be registered and logged in.
If you are interested in integration of data from European data portals, it is worth the time to register, etc.
Not all the data you are going to need to integrate a data set but at least a start in the right direction.