How can DDI make the most of RDF

The development of DDI 4, including a RDF serialization, is under way. The broad objective of RDF is to define a mechanism for describing resources that makes no assumptions about a particular application domain, nor defines a priori semantics of any application domain. Thus, existing RDF vocabularies can be straightforwardly reused by the future DDI implementation model. Some vocabularies are already well-known and even used in the statistical community, for example SKOS (Simple Knowledge Organization System), others are developed under the auspices of the DDI Alliance (DISCO, XKOS…) or widespread in the Semantic Web community (the Dublin Core, also included in the previous versions of DDI). Insee is going to manage its official concepts and classifications using SKOS and XKOS as core modeling standards. Some DDI controlled vocabularies and the recent UNECE glossary could also be transformed to RDF and linked to our metadata. The presentation will demonstrate how Insee articulates the usage of RDF vocabularies with the DDI implementation to make its metadata semantically richer and their reuse more consistent and focused. A quick demo will show how the concepts can be: Managed in RDF Published as linked metadata Replicated as DDI in a Colectica Repository