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Summary

FaCT++ is a DL reasoner. It supports OWL DL and (partially) OWL 2

The latest available version is 1.5.3, released 7 December 2011.

FaCT++ is implemented in C++ and uses optimised tableaux algorithms.

Detailed description and future plans

FaCT++ his partially supporting OWL 2. The missing bits are:

  • No support for keys
  • Partial datatype support. At the moment, the only supported datatypes are Literal, string, anyURI, boolean, float, double, integer, int, nonNegativeInteger, dateTime.

The 1.4.0 release is the last one that support DIG interface.

The 1.4.0 release is the last one that supports OWL API v2 interface.

The 1.4.1 release is the last one that supports OWL API v3.0 interface

If you are lost in all the FaCT++ and/or APIs versions supported please check the WhichVersionDoINeed page.

Related Projects

Release History

Version Date Comment
1.5.3 7 December 2011 Bug fixes, Top/Bottom properties implementation, improved fresh entities support
1.5.2 12 April 2011 Some speedup, implement dateTime datatype support
1.5.1 18 January 2011 Bug and stability fixes
1.5.0 5 October 2010 OWL API 3.1 support
1.4.1 7 September 2010 Bug and stability fixes
1.4.0 29 April 2010 Initial support of OWL 2 using OWL API 3; stability fixes
1.3.0 29 May 2009 Incremental reasoning implementation
1.2.3 05 March 2009 Bug-fix release
1.2.2 14 January 2009 Bug-fix release, some speedup
1.2.1 20 November 2008 Bug-fix release, some speedup
1.2.0 25 September 2008 Bug-fix release, some speedup
1.1.11 28 March 2008 Bug-fix release, some speedups in ABox reasoning
1.1.10 30 November 2007 Bug-fix release
1.1.9 04 October 2007 Bug-fix release; floating point datatypes now supported
1.1.8 12 July 2007 Bug-fix release, improve performance
1.1.7 11 May 2007 Bug-fix release
1.1.6 30 April 2007 Bug-fixes, prepare the movement to Google Code.
1.1.5 12 March 2007 Bug-fix release.
1.1.4 07 December 2006 SROIQ logic (OWL 1.1) is supported now.
1.1.3 05 April 2006 Bug-fixes, stability improvements.
1.1.2 08 March 2006 Bug-fix release.
1.1.1 20 February 2006 Improve performance.
1.1.0 16 January 2006 DataTypes (like String and Integer) support added.
1.0.0 17 November 2005 Reasoning in SHOIQ (a.k.a. OWL DL) is supported.

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