| Citation: | GUO Z，ZHAO G，FU B，et al. Considering visual search characteristics on command and control system KLSM[J]. Journal of Beijing University of Aeronautics and Astronautics，2024，50（9）：2819-2825 （in Chinese） doi: 10.13700/j.bh.1001-5965.2024.0120
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The traditional keystroke level model (KLM) focuses on the operation analysis of the keyboard and mouse, which is well-suited for efficiently quantifying job completion time in straightforward software interfaces. However, a significant error occurs when the software interface of the command and control system is transferred to evaluate complicated information characteristics. This paper introduces a physical operation time unit index for the command and control system, based on the visual search processing time of users. The index is derived from experiments that determine the typical parameters of user visual search processing time. Additionally, a more precise task operation analysis model called keystroke level and visual search model (KLSM) is established, which takes into account the impact of visual search characteristic factors. The comparative test examines the accuracy of the KLSM model in forecasting and evaluating the task completion time by using 5 typical command and control tasks as examples.
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