A Model of Operator Interaction with Field Procedures: Insights for Computer-Based Procedures

Abstract

Paper-based procedures (PBPs) are used to manage human performance in the nuclear power industry both in the field, and in the main control room. Though PBPs are viewed as a necessary tool to guide operators through complex tasks, limitations in paper-based systems may increase operator workload and contribute to errors. Plans to upgrade aging plants with digital equipment and wireless technology may present an opportunity to enhance procedures by migrating them to computer-based systems. These computer-based procedures (CBPs) have the potential to enhance human performance by integrating plant status information and automating many tasks (e.g., place-keeping). CBPs have been explored for more than 30 years for use in the main control room; however their actual deployment in the US nuclear plants is yet to be realized. Currently, the Idaho National Laboratory and participants from the nuclear industry are collaborating on a research effort aimed at identifying requirements for CBPs used by field operators. This paper describes the first step in that effort: a qualitative study and the development of a Model of Procedure Usage.

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