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U.S. Department of Energy
Office of Scientific and Technical Information

Verification and validation of expert systems for nuclear power plant applications: Final report

Technical Report ·
OSTI ID:6913591
This report describes a methodology for the Verification and Validation (VandV) of expert systems developed for nuclear power applications. Verification pertains to the internal correctness of the system and addresses the task of eliminating errors made by the builders in translating their original plan into a detailed design and coding it. Validation, on the other hand, refers to external correctness which is manifest in correct or desired output when the system is operating in a realistic environment. The field of expert system development is still new, with few expert systems in operational use, particularly in critical applications such as nuclear power where a thorough VandV program is requisite. Therefore, techniques for verifying and validating these systems are even newer, and still an area of much research and development. Fortunately, significant progress has been made in expert system VandV. This progress, when combined with a careful assessment of the possible contributions from conventional software VandV, allows a methodology for the VandV of expert systems for nuclear power applications to be developed.
Research Organization:
Electric Power Research Inst., Palo Alto, CA (USA); Science Applications International Corp., McLean, VA (USA)
OSTI ID:
6913591
Report Number(s):
EPRI-NP-5978; ON: TI88016200
Country of Publication:
United States
Language:
English