Evaluating an Expert System in the Field: Experience with the CORA Expert System
Most expert systems are built through a process of iteration: from “toy” or prototype systems to more complete and polished systems. At each iteration step, a validation may be conducted. The validation may be as simple as sitting down with the source expert for a run-through of the system to a complex external validation by outside experts (Castore, 1987). Less frequent in the expert systems literature are discussions about how a variety of end users, with varied computer skills and diverse information needs, actually use an expert system in practice. Two recent papers addressing this issue are Berry and Hart (1990) and Irgon, et al. (1990).
KeywordsExpert System Cost Component Remedial Action Environmental Planning Vapor Extraction
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