Abstract
This study focused on the effect of the control-response ratio (C/R ratio) of a multi-touch interface for move and rotation operations. The experiments were conducted to collect data on user performance and subjective evaluation to analyze the effects of five levels of the C/R ratio. Forty-five participants, 15 male and 30 female, were given tasks to complete. The results showed that in overall operations, subjective satisfaction was highest with the C/R ratio 1/1, but in the usability analysis among the C/R ratios 1/1, 1/2, and 2/1, there was no significant difference. Specific operations that analyzed the effects of the C/R ratio showed in the move operations the best C/R ratio was located between 1/1 and 1/2, and in the rotation operations, the difference among the C/R ratios 2/1, 1/1, and 1/2 was not significant. The best C/R ratio might be located among the three values. The results show that on a mid-size multi-touch screen, a modified C/R ratio may help users in pan and rotation operations to improve performance and satisfaction.
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Chen, W., Chen, CW., Chen, KH. (2013). Modified Control-Response Ratio for Move and Rotation Operations on a Large Multi-touch Interface. In: Stephanidis, C., Antona, M. (eds) Universal Access in Human-Computer Interaction. Design Methods, Tools, and Interaction Techniques for eInclusion. UAHCI 2013. Lecture Notes in Computer Science, vol 8009. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-39188-0_48
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DOI: https://doi.org/10.1007/978-3-642-39188-0_48
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