You might find the CLIPS docs useful [0]. iirc, DROOLS was at least in part inspired by CLIPS. Plus the CLIPS docs are very well written as noted elsewhere.

You might find the CLIPS docs useful [0]. iirc, DROOLS was at least in part inspired by CLIPS. Plus the CLIPS docs are very well written as noted elsewhere. The book "Expert Systems: Principles and Programming" [1] is also good though now out of print. [0] http://www.clipsrules.net/Documentation.html http://www.clipsrules.net/Documentation.html [1] http://www.amazon.com/exec/obidos/tg/detail/-/0534384471/ref=lpr_g_1/002-8157855-8752009?v=glance&s=bo http://www.amazon.com/exec/obidos/tg/detail/-/0534384471/ref...