LICENSE FOR SUMO

Please refer to www.ontologyportal.org/

SUMO is free and owned by the IEEE. The ontologies that extend SUMO are available under GNU General Public License. Adam Pease is the Technical Editor of SUMO.

Primary paper: Niles, I., and Pease, A. 2001. Towards a Standard Upper Ontology. In Proceedings of the 2nd International Conference on Formal Ontology in Information Systems (FOIS-2001), Chris Welty and Barry Smith, eds, Ogunquit, Maine, October 17-19, 2001. home.earthlink.net/~adampease/professional/FOIS.pdf

LICENSE FOR SIGMA

This code and documentation are copyright Articulate Software © 2005, 2006, 2007. Some portions copyright Teknowledge © 2003 and reused under the terms of the GNU license. This software is released under the GNU Public License www.gnu.org/copyleft/gpl.html .

Users of this code also consent, by use of this code, to credit Articulate Software and Teknowledge in any writings, briefings, publications, presentations, or other representations of any software that incorporates, builds on, or uses this code. Please cite the following article in any publication with references:

Pease, A., (2003). The Sigma Ontology Development Environment. In Working Notes of the IJCAI-2003 Workshop on Ontology and Distributed Systems, August 9, Acapulco, Mexico.

Note that the current release of Sigma is “beta” code, and is not suitable for any mission-critical use. It is strictly a tool for research. Sigma comes with no warranty, expressed or implied. By using Sigma, you assume all responsibility for events that may result, and agree to hold Articulate Software blameless for any adverse consequences.

Bug reports, fixed code, and new, implemented features are welcome, however, and will be shared with the Sigma user community. Niles, I., and Pease, A. 2001. Towards a Standard Upper Ontology. In Proceedings of the 2nd International Conference on Formal Ontology in Information Systems (FOIS-2001), Chris Welty and Barry Smith, eds, Ogunquit, Maine, October 17-19, 2001. home.earthlink.net/~adampease/professional/FOIS.pdf