posted 21 years ago
Hi Bill,
Thanks for asking! The FuzzyJess toolkit is quite a popular extension, and Bob Orchard, the developer, is an all-around great guy. We work closely to ensure that current versions of Jess and Bob's FuzzyJ toolkit work together well.
FuzzyJess makes a great environment for doing soft real-time control. In "Jess in Action" (paper copies of which I understand are finally appearing in the wild) I describe a system that controls the HVAC (Heating, Ventilation and Air Conditioning) systems for an office building. First I build it using Jess without fuzzy extensions, and then we (Bob was the co-author for this section) go back and retrofit FuzzyJess. The non-fuzzy system can control the temperature of every floor of a hundred-story building to within +/- 1 degree or so. The FuzzyJess version (with slightly enhanced "virtual hardware") keeps temperatures constant to something like 0.2 degrees.