Abstract

Clinical Judgment Analysis (CJA) has been used to generate statistically firm models of expert judgment. These studies show that experts have poor insight into the basis for their decisions. In addition expert performance has been shown to be inconsistent and often surprisingly poor compared with non-experts in the domain of expertise. CJA studies have shown that the frequently used methods of knowledge elicitation for IKBS based on the analysis of a single expert’s behaviour and his interaction with a knowledge engineer may be seriously compromised by sources of error rarely considered by IKBS implementers. CJA reveals important differences between experts, the causes of these differences and ways of achieving consensus between experts. Possible applications of CJA techniques in the development of IKBS are discussed.

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