A maintenance expert system that has been designed with its focus on applied knowledge representation is reported. Two main points of interest are described: (1) the representation and reasoning mechanisms necessary for diagnosis based on a deep model of a device; and (2) the representation for an integrated graphical user interface with limited natural language capabilities. Device structure is represented in a hierarchy of device types. Structural templates and instantiation rules permit focused diagnostic reasoning using lazy instantiation. A functional description is procedurally attached to the declarative network representation. Similarly, pieces of graphics code are attached to a declarative representation of the graphical appearance of the device.
|Original language||English (US)|
|Number of pages||6|
|Journal||Proceedings of the Annual Reliability and Maintainability Symposium|
|State||Published - Jan 1 1987|
All Science Journal Classification (ASJC) codes
- Engineering (miscellaneous)