The Production Rule Representation (PRR) is a proposed standard of the Object Management Group (OMG) to provide a vendor-neutral rule-model representation in UML for production rules as used in forward-chaining rule engines.
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Production rules (or simply productions) are conditional if-then branches. In a production system whenever a or condition in the system is satisfied, the system is allowed to execute or perform a specific action which may be specified under that rule.
Chapter 5—Production Rules as a Representation for a Knowledgte Based Consultation Program
Randall Davis, Bruce G. Buchanan, and Edward H. Shortliffe ...
We shall examine production rule based expert systems. In addition to the production rule base, the expert system must give a helpful user interface, a facility for the user to question the program, ...
set of production rules intuitively set by an expert control engineer. The
antecedent (premise) part of the rules in a rule-based system is searched
against the dynamic response of the plant parameters. The rule whose ...
context sensitive a grammar in which the left-hand side of each production rule has a length that is less than or equal to the length of the right-hand side. There may be some symbols (context) around the nonterminal on the left-hand side.
The production system therefore implements a symbolic model that makes theoretical commitments at the level of production rules, and defines a computationally complete system at that level (Lewis, 1999).
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Particular emphasis is placed on knowledge representation schemes - production rules, structured objects, and procedural deduction - and their properties are explored and analysed in some detail.
Apprentice: That must be what their psychologists mean when they speak about "schemes" or "production rules." ...
 See also: Knowledge, AI, Inference, Artificial intelligence, Problem solving
  
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