production system

1 definition found

production system - Free On-line Dictionary of Computing (26 May 2007) :

  production system
  
     <programming> A production system consists of a collection of
     productions (rules), a working memory of facts and an
     algorithm, known as forward chaining, for producing new
     facts from old.  A rule becomes eligible to "fire" when its
     conditions match some set of elements currently in working
     memory.  A conflict resolution strategy determines which of
     several eligible rules (the conflict set) fires next.  A
     condition is a list of symbols which represent constants,
     which must be matched exactly; variables which bind to the
     thing they match and "<> symbol" which matches a field not
     equal to symbol.
  
     Example production systems are OPS5, CLIPS, flex.
  
     (2005-06-17)