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Cognitive environment simulation: An artificial intelligence system for human performance assessment: Summary and overview: (Technical report, May 1986-June 1987)

Technical Report ·
OSTI ID:5546022

This report documents the results of Phase II of a three phase research program to develop and validate improved methods to model the cognitive behavior of nuclear power plant (NPP) personnel. In Phase II a dynamic simulation capability for modeling how people form intentions to act in NPP emergency situations was developed based on techniques from artificial intelligence. This modeling tool, Cognitive Environment Simulation or CES, simulates the cognitive processes that determine situation assessment and intention formation. It can be used to investigate analytically what situations and factors lead to intention failures, what actions follow from intention failures, the ability to recover from errors or additional machine failures, and the effects of changes in the NPP person-machine system. The Cognitive Reliability Assessment Technique (or CREATE) was also developed in Phase II to specify how CES can be used to enhance the measurement of the human contribution to risk in probabilistic risk assessment (PRA) studies. The results are reported in three self-contained volumes that describe the research from different perspectives. Volume 1 provides an overview of both CES and CREATE. 30 refs., 6 figs.

Research Organization:
Westinghouse Research and Development Center, Pittsburgh, PA (USA)
OSTI ID:
5546022
Report Number(s):
NUREG/CR-4862-Vol.1; ON: TI88900189
Country of Publication:
United States
Language:
English