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news  
 
16 June 2010  
Prot. 4.1 beta released!  
(read more) | (download)  
 
 
 
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Protégé is a free, open source ontology editor and knowledge-base framework.

The Protégé platform supports two main ways of modeling ontologies via the Protégé-Frames and Protégé-OWL editors. Protégé ontologies can be exported into a variety of formats including RDF(S), OWL, and XML Schema. (more)

Protégé is based on Java, is extensible, and provides a plug-and-play environment that makes it a flexible base for rapid prototyping and application development. (more)
Protégé is supported by a strong community of developers and academic, government and corporate users, who are using Protégé for knowledge solutions in areas as diverse as biomedicine, intelligence gathering, and corporate modeling.

community
Registered Users 153,642
protege-users list members 17,235
protege-discussion list members 2,746
protege-owl list members 2,248

Protégé is available from this site as a free download along with plug-ins and ontologies.

downloads
Protégé 4.1 beta July 30, 2010
Protégé 4.0.2 December 3, 2009
Protégé 3.4.4 March 8, 2010
WebProtégé 0.5 alpha August 14, 2009


protege-owl
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protege-frames
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WebProtege
go to WebProtégé