NDLI: Development of a human performance modeling tool for user interface evaluation in next generation spacecraft: an empirical approach

Content Provider	IEEE Xplore Digital Library
Author	Ravinder, U. McCann, R.S. Beutter, B. Stone, L. Huemer, V.
Copyright Year	2007
Description	Author affiliation: San Jose State Univ. Found. & working, Moffett Field (Ravinder, U.)
Abstract	Computational models of human performance hold considerable promise for streamlining design/test/redesign cycles for crew interfaces on next-generation space vehicles. To fulfill that promise, however, the models will have to be able to simulate and predict human performance in a highly complex operational environment. We describe an empirical approach to aid model development, which is based on analyses of the oculomotor behavior of human operators during a fault management task in a part-task shuttle cockpit simulator. For each operator, each of the eye fixations involved in the fault management task was classified as belonging to one of nine information acquisition categories (e.g. reading text, checking systems parameters, monitoring an action). For each category, we combined the fixation data across the operators and two levels of automation to produce a well populated distribution of fixation latencies, each of which was well fit by a gamma function. We then performed simulations in which, for each operator, the duration of each fixation involved in the fault management task was repeatedly stochastically sampled from the appropriate gamma distribution. The average of these samples was then substituted for the actual duration of each fixation, and the sum of the model-based fixation durations was then compared to the actual fault management completion time obtained from each observer. The model-derived task completion times were highly predictive of both the mean and variance in operators' actual finishing times. The next steps in generating model-based behavior are discussed.
Starting Page	2545
Ending Page	2550
File Size	369899
Page Count	6
File Format	PDF
ISBN	9781424409907
DOI	10.1109/ICSMC.2007.4414107
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-07
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Humans User interfaces Space vehicles Predictive models Computational modeling Computer interfaces Testing Analytical models Condition monitoring Automation
Content Type	Text
Resource Type	Article

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