Question

which of the following best defines an expert system?
a. it is a large, organization - wide database that stores data in a centralized location.
b. it is system software that controls the overall operation of a computer and provides user interface.
c. it is a decision support system that helps decision makers discover subtle and complex relationships hidden in their data.
d. it is a decision support system that helps managers make better decisions in an area where they lack skill or knowledge.

Explanation:

An expert system is a type of decision - support system. It uses knowledge and reasoning to provide solutions in domains where the user may lack expertise.

• Option A describes a data warehouse (a large, organization - wide database stored centrally), not an expert system.
• Option B refers to operating system software (which controls computer operations and provides user interface), not an expert system.
• Option C describes a data mining system (which discovers relationships in data), not an expert system.
• Option D correctly aligns with the definition of an expert system as it aids managers in decision - making in areas of their knowledge/skill deficit.

Answer:

D. It is a decision support system that helps managers make better decisions in an area where they lack skill or knowledge.