Are there any tools for ontology design and management?
Today, there are more than 90 tools available from both non-commercial organizations and commercial software vendors. Most of them are tools for designing and editing ontology files. Some of them may pro vide certain capabilities for analyzing, modifying, and maintaining ontologies over time, in addition to the editing capabilities. One of the more popular editing tools is Protg, developed by the Stanford University School of Medicine. Other tools are SemTalk, OilEd, Unicorn, Jena, and Snobase, to name a few.