In the context of an expert system, a works with the knowledge base management system to ensure that the knowledge base is as up to date as possible.

Knowledge Acquisition Facility.

Explanation:

The power and effectiveness of the Expert System  is equal to the quality of the knowledge it contains. The  knowledge has to deal with high complexity and apply the best judgement. collection of expert knowledge is very important and involves the collecting information about a field usually from  an expert. This information is stored in a computer program stored as a knowledge base.

Knowledge is always updating so it also very important to keep it up to date and it is done by Knowledge Acquisition Facility.

c

explanation: