A Review of Expert Systems Evaluation Techniques
Peter D. Grogono, Alun D. Preece, Rajjan Shinghal, Ching Y. Suen · 1993
Although expert systems have been in use for many years, evaluation techniques are neither fre-quently applied nor widely known. Our research group has been investigating techniques for evalu-ating expert systems since 1989, and we have de-veloped a methodology for the systematic design and implementation of expert systems of many dif-ferent kinds. Our method begins with the prepa-ration of a specification that captures the needs of the application. During the implementation of the expert system, we recommend verification, to de-tect internal inconsistencies in the knowledge base, and validation, to check that the system is behav-ing in accordance with the specification. Verifica-tion can be partly automated: we review our own tool, COVER, and its application to verification of working expert systems.