The main components of an expert system include a Knowledge base, a user interface and
A) a database
B) an explanation facility
C) an inference engine
D) a constraint propagator

Question

Quizplus · Accepted Answer

The knowledge base stores the domain-specific knowledge, while the user interface allows interaction between the system and user. However, for the system to make decisions and draw conclusions based on the knowledge base, an inference engine is required. This engine uses logic and rules to make decisions and is an essential component of an expert system. The explanation facility and constraint propagator are also important, but less fundamental components. Therefore, the best answer is C: an inference engine.

The Main Components of an Expert System Include a Knowledge