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Match each component with its role.

List I

A. Inference engine

B. Knowledge base

C. Explanation facility

List II

P. stores domain rules

Q. controls rule application

R. reports the reasoning

Select the correct match.

  • A.A-Q, B-R, C-P
  • B.A-Q, B-P, C-R
  • C.A-P, B-Q, C-R
  • D.A-R, B-Q, C-P

Answer: B

The engine controls which rules are applied, the knowledge base stores them, and the explanation facility reports afterwards on what fired. The separation of these three roles is the architectural commitment that distinguishes an expert system from a conventional program, and every other property of the field, from shells to explanation, follows from keeping them apart.

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