It further enables decentralized publishing of catalogs and facilitates federated dataset search across sites.
Aggregated DCAT metadata can serve as a manifest file to facilitate digital preservation.
The original DCAT vocabulary was developed at DERI, refined by the e Gov Interest Group, and then finally standardized by the Government Linked Data (GLD) Working Group.
DCAT incorporates terms from pre-existing vocabularies, where stable terms with appropriate meanings could be found, such as foaf:homepage and dct:title.
W3C's role in making the Recommendation is to draw attention to the specification and to promote its widespread deployment.