Have you ever heard about Data Catalog Interoperability Protocol (DCIP)? DCIP is a specification designed to facilitate interoperability between data catalogs published on the Web by defining:

• a JSON and RDF representation for key data catalog entities such asDataset (DatasetRecord) and Resource (Distribution)based on the DCAT vocabulary
• a read only REST based protocol for achieving basic catalog interoperability

Data Catalog Interoperability Protocol (DCIP) v0.2 discusses each of the above and provides examples. The approach is designed to be a pragmatic and easily implementable. It merges existing work on DCAT with the real-life experiences of “harvesting” in various projects.

To know more about DCIP, you can visit the Open Data Protocols website, which aims to make easier to develop tools and services for working with data, and, to ensure greater interoperability between new and existing tools and services.