Saturday, July 21, 2007

D2RQ - Treating Non-RDF Databases as Virtual RDF Graphs

D2RQ V0.5 - Treating
Non-RDF Databases as Virtual RDF Graphs

As Semantic Web technologies are getting mature, there is a growing
need for RDF applications to access the content of non-RDF, legacy databases
without having to replicate the whole database into RDF. D2RQ is a declarative
language to describe mappings between relational database schemata and
OWL/RDFS ontologies. The mappings allow RDF applications to access the
content of huge, non-RDF databases using Semantic Web query languages
like SPARQL.

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