Page History

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SILK (silk.semwebcentral.org)  -  extends SILK extends the expressive power of SPARQL, OWL-RL, RIF-BLD, and is designed with biomed biomedical projects in mind.

SQI-Prolog (www.swi-prolog.org) - Implementation - SQI-Prolog provides implementation of the Prolog language with support for RDF, OWL and SPARQL.  Scalable Scalable to available memory and can be embbeded embedded in Java applications.

DLVHEX (www.kr.tuwien.ac.at/research/systems/dlvhex/)  - This LVHEX is a prototype application for providing reasoning with OWL ontologies, with SPARQL plugin support.

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Ontobroker (ontoprise.de) - A Ontobroker is a commercial package which provides support for high performance reasoning for W3C standards such as OWL, RIF, RDF(S), and SPARQL which . Ontobroker integrates to multiple database systems and support supports web service interfaces.  Along with Ontostudio which provides a visual modeling tool for work with Ontobroker.

[FLORA-2 (flora.sourceforge.net)|http://flora.sourceforge.net/]  - Flora is an object-oriented rule language , and implementation of the RIF standard, it . It does not appear to be currently developed, but may have application here.

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TopBraid Composer (topquadrant.com) - TopBraid Composer is available in both a community edition and a commercial license version. TopBraid Composer Community Edition provides an Eclipse plugin-based approach to ontology editing. This allows for the integration of other tools via the OSGI standard, and provides a basis for using other Eclipse-based tools. TopBraid Composer uses the Jena tool to access ontologies and shares its limitations. In addition, the community edition is limited to the editing of OWL or RDF files and does not support access of database stores. It does support SPARQL as part of its functionality, and utilizes the Eclipse approach of projects.

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