Jess
System software
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Jess is a rule engine for the Java platform that was developed by Ernest Friedman-Hill of Sandia National Labs. It is a superset of the CLIPS programming language. It was first written in late 1995. Wikipedia
Programming language: Java
License: Closed source / Public Domain
Stable release: 7.1p2 / November 5, 2008; 15 years ago