Condition-action rule

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condition-action rule

A condition-action rule, also called a production or production rule, is a rule of the form

if condition then action.

The condition may be a compound one using connectives like and, or, and not. The action, too, may be compound. The action can affect the value of working memory variables, or take some real world action, or potentially do other things, including stopping the production system.

The knowledge of many expert systems is principally stored in their collections of rules.

See also inference engine.

Source : UNWS AI dictionary