Expert-based maintenance: a study of its effectiveness

Monitoring of computer-based systems by a supervisory computer is common for high-availability systems. Expert-based supervisory systems are being proposed which are able to use dynamic information of the system to operate them with increased reliability. This paper brings out the functional capabilities of expert-based maintenance, and presents an analytic model to evaluate the effectiveness of the expert system in maintenance. The abilities of the expert system to maintain the host are parameterized and their effects on the performance of the system are studied. The results show possible improvement in the performance of a host due to expert-based maintenance.