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Erschienen in:
2007 | OriginalPaper | Buchkapitel
A Study of Control Performance in Low Frequency Motion Workstation
verfasst von : Yi-Jan Yau, Chin-Jung Chao, Sheue-Ling Hwang, Jhih-Tsong Lin
Erschienen in: Universal Access in Human-Computer Interaction. Ambient Interaction
Verlag: Springer Berlin Heidelberg
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Many studies have found the performance of using non-keyboard input devices (NKID) was affected by motion environment, but few of them have considered the interaction between motion direction and the approach angle on manipulating NKID. In this study, an experiment was conducted to investigate the effect of different approach angles (0o, 45o, 90o, 135o, 180o, 225o, 270o, 315o, 360o) and motion directions (roll and pitch) on the performance (movement time and error rate) of using trackball. The results showed that the main effect of approach angle on movement time was significant, whereas there was neither significant interaction nor the main effect of motion direction. The effects of approach angle and motion direction on the error rate were not significant. Some suggestions on the control console and interface design were proposed based on the results of the experiment.