Fig. 4 Comparison of the evaluation results (Original Design: 100)
In this paper, we discussed an HMI evaluation and analysis method in industrial application and developed a new evaluation system, DIAS. By applying the computer simulation, it simulates the interaction between the operator and the equipment and derives several indices such as the physical loads, human error probability, guideline check, and so on. The authors applied it to evaluate and analyze the interface design of a relay panel in an actual nuclear power plant and modified it to achieve human error reduction. Iterative use of DIAS in the design phase leads to an HMI of good quality. DIAS is very useful because it helps the designer evaluate the design himself and helps the analyst design alternative design proposals. The authors believe that the computer simulation of human-machine interaction will become a useful tool for improvements in the human factor in industrial applications.
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