Two last call working drafts have been published by the W3C’s RDB2RDF Working Group regarding bringing relational database information to the semantic web. The two papers are entitled R2RML: RDB to RDF Mapping Language and A Direct Mapping of Relational Data to RDF: “The former describes R2RML, a language for expressing customized mappings from relational databases to RDF datasets. Such mappings provide the ability to view existing relational data in the RDF data model, expressed in a structure and target vocabulary of the mapping author’s choice. The latter document defines a direct mapping from relational data to RDF. Comments are welcome through 1 November.”

The group page adds, “These are documents produced outside the RDB2RDF Working Group that will be inputs to the standardization work of RDB2RDF WG. Please alert the co-Chairs or Staff Contact of the Working Group if you know of any material that you think merits inclusion.”

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