I’m using Jess on a large DARPA project, and I find it to be a mature and stable platform. The mailing list goes quiet but responds quickly when people ask questions. The Jess language is a subset of LISP, which is an obvious touchpoint for religious debates, so if you’re looking for a “reason” to disprefer Jess, it’s right there. On the other hand, the integration with Java is robust, to the point where you can interact entirely with the rule engine via Java if you wish. The rule engine itself has a rich feature set and appears to implement the Rete algorithm efficiently. The original developer and author of Jess in Action, Ernest Friedman-Hill, responds promptly and thoughtfully to technical questions posted to the mailing list.
-John From: Jason Morris [mailto:[email protected]] Sent: Tuesday, May 31, 2011 7:13 PM To: [email protected] Subject: Re: JESS: Is Jess still alive, and Jess In Action I have been waiting a LONG time for someone besides me to ask this question. Can't wait to hear the answer ;-) On Tue, May 31, 2011 at 5:35 PM, Paul Gifford <[email protected]> wrote: Hi, We're looking at a couple of Java rules engines, Jess among them. It's been a couple of years since the site has been updated - is Jess still under active development? I've started reading through Jess In Action. The book was published in 2003 - is it still applicable to the 2008 version of Jess? Thanks, Paul -- Cheers, Jason ------------------------------------------------------ Morris Technical Solutions LLC [email protected] (517) 304-5883
