mdesalvo 

With RDFSharp it is possible to realize .NET applications capable of modeling, storing and querying RDF data.

Store RDF data on Firebird with RDFSharp

Store RDF data on MySQL with RDFSharp

Store RDF data on PostgreSQL with RDFSharp

With RDFSharp.Semantics it is possible to realize .NET applications capable of modeling, validating and reasoning with OWL-DL ontologies

Store RDF data on SQLite with RDFSharp

LinkedData ontologies modeled with RDFSharp.Semantics. Actual implementation includes DC, FOAF, GEO, SKOS, SIOC ontologies.