What are benefits of Expert Systems?

a. Availability
Due to mass production of software, expert systems are easily available.
b. Less Production Cost
As production cost of an expert system is reasonable. Thus, it makes them affordable.
c. Speed
Generally, expert systems offer great speed. Also, reduce the amount of work that an individual puts in.
d. Less Error Rate
Generally, an error rate of the expert system is low in comparison to human errors.
e. Reduced danger
They can be used in any risky environments where humans cannot work with.
f. Permanence
The knowledge will last long indefinitely.
g. Multiple expertise
Generally, it can be designed to have knowledge of many experts.
h. Explanation
They are capable of explaining in detail the reasoning that led to a conclusion.