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<language> A programming language for rule-based production systems. A rule consists of pre-condition(s) and a resulting action.

The system checks its working memory to see if there are rules whose pre-conditions are satisfied, if so, the action in one selected satisfied rule is executed.

There is a public domain implementation of an OPS5 interpreter written by Charles L. Forgy <forgy@cs.cmu.edu> in 1977. It was first implemented in Lisp and later in BLISS. It was also ported to Common Lisp by George Wood and Jim Kowalski.

CLIPS is a language for writing expert systems, with some of the capabilities of OPS5.

See also C5, OPS83, OPS4, OPS5+, OPS83.

Inference Engine Tech, Cambridge MA.

An OPS5 interpreter in Common LISP (ftp://ftp.wustl.edu/mirrors/Unix-c/languages/ops5).

A version by Mark Kantrowitz (ftp://ftp.cs.cmu.edu/afs/cs.cmu.edu/user/mkant/Public/Lisp/). <mkant+@cs.cmu.edu>.

["Programming Expert Systems in OPS5", L. Brownston et al, A-W 1985].

["An OPS5 Primer", Sherman et al, comes with OPS5 for DOS].

["Rule-Based Programming in the Unix System", G.T. Vesonder, AT&T Tech J 67(1), 1988].


Nearby terms: OPF « Opportunity Management System « OPS « OPS5 » OPS83 » Optical Carrier 12 » Optical Carrier 3

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