Programming with Ontologies Java + Jena API Collection of Tools and Java Libraries For Developing Linked-data Apps, Tools and Servers Store Information in RDF Triples in Directed Graphs An Ontology API for Handling OWL and RDFS Ontologies A Rule-based Inference Engine for Reasoning with RDF and OWL data sources Efficient Storage of Triples on Disk A query engine compliant with the latest SPARQL
{}