Tool Overview
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. 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.
Protégé software is currently transitioning from the current version (Protégé 3.X) to an entirely new release (Protégé 4.x). Protégé 3.X is widely used and the adoption of Protégé 4 is slowing happening. Because of this, you will find resources for both versions. If you are interested in the current difference between the two, please read the comparison on the Stanford website.
What's New
Protégé 4.1 Release
July 26, 2011
The highlights of this release are:
- Full conformance with the OWL 2.0 language specification
- Automatic update mechanism for distributing new features and bug fixes
- New application bundle format distribution for the OS X community
- Direct, in-memory connection to the HermiT and FaCT++ reasoners
For further information, please visit:
Protégé 3.4.7 Release
July 15, 2011
The highlights of this release are:
- Added additional SQWRL operators to support more elaborate query result selection:
- selecting a subset of results
- retrieving all elements from a collection
- Updated SQWRL Query API
- Updated the BioPortal Reference plug-in to store the short term ID properly
For further information, please visit:
For information about previous versions of Protégé, please visit [Protégé Past Versions].
Presentations, Demos and Other Materials
Documentation and Training
Forums
- Protégé End User Forum via the Knowledge Centers
- Protégé Developer Forum via the Knowledge Centers
- Stanford Protégé Mailing Lists
Installation and Downloads
As Protégé is an open source product, downloads are available through the Stanford Protégé site:
Downloads for Protégé 3 and Protégé 4
The Code Repository can be found at these Stanford sites:
The Protégé Bug Tracker can be found on a Stanford service: Protégé Bugzilla
Related Tools
- NCI Protégé
- [LexOWL]
Other Links and Support
Refer to the Forums section.