DEVELOPMENT OF A SHELL FOR CONSTRUCTING A DIAGNOSTIC EXPERT SYSTEM BASED ON DESIGNERS KNOWLEDGE

Conventionally, diagnostic expert systems have been developed using ma intenance engineer's knowledge. However, these systems have many probl ems, such as the requirement for failure data and experience of mainte nance for objective equipment, etc. This paper presents a method of kn owledge representation and systematization of knowledge for diagnostic expert systems which can be applied to new equipment having no histor ical data. The use of design knowledge and the relations between compo nents are considered in terms of necessary and possible relation. A me thod of knowledge representation, termed a dual direction diagnostic m atrix, is introduced. As a result, it is confirmed that speedy and con cise diagnosis can be implemented.