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Sycara and Paolucci
OWL
Tools
Racer:
OWL-Lite
inference engine
www.sts.tu-harburg.de/~r.f.moeller/racer/
Tools at Network Inference
http://www.networkinference.com/
OilEd:
http://oiled.man.ac.uk/
Editor for ontologies
Mostly for DAML+OIL, exports OWL but not a current representation
OWL Validator:
http://owl.bbn.com/validator/
Web-based or command-line utility
Performs basic validation of OWL file
OWL Ontology Validator:
http://phoebus.cs.man.ac.uk:9999/OWL/Validator
a "species validator" that checks use of OWL Lite, OWL DL, and OWL Full
constructs
Euler:
http://www.agfa.com/w3c/euler/
an inference engine which has been used for a lot of the OWL Test Cases
Chimaera:
http://www.ksl.stanford.edu/software/chimaera/
Ontology evolution environment (diagnostics, merging, light editing)
Mostly for DAML+OIL,
being updated to export and inport current OWL
Extensive list of tools,
http://www.w3.org/2001/sw/WebOnt/impls