What key professional or professionals are required to develop an
expert system?

A.
Domain expert and object designer

B.
Knowledge engineer and object designer

C.
Knowledge engineer and domain expert

D.
Domain expert

Explanation:
The knowledge engineer usually has a computer-related and expert
system background, but does not have the knowledge of the specific
discipline or domain being addressed by the expert system. For
example, the expert system being developed may be a medical diagnostic
system requiring input from diagnostic specialists and other
types of physicians. These individuals are the domain experts. It is the
job of the knowledge engineer to elicit the critical knowledge from
the domain expert and incorporate it into the expert system knowledge
base. The term object designer in the answers is a distracter.