Designing for a Thumb: An Ideal Mobile Touchscreen Interface for Chinese Users
This paper focuses on designing for cross-cultural users; specifically, it describes a study conducted to determine the "Comfort Zone" and optimal touch target size for one-handed thumb use. Similar studies have provided general measurements for touch targets, but they are not applicable to all the slots on a touchscreen, nor are they consistent with the actual physiological measurements (i.e., the size of hands and fingers) of Chinese users. The study used repeated measures in a within-subject design of 16 (slots) × 5 (target sizes) × 10 (repetitions). The results indicated the Comfort Zone for the right thumb of Chinese users is significantly different at 0.01 level, and falls on a fan-shaped area located on the inclined left side of the screen. Different locations were required for different optimal touch target sizes.
KeywordsDesign/evaluation for cross-cultural users One-handed mobile devices touchscreens touch target size
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- 2.Roudaut, A., Huot, S., Lecolinet, E.: TapTap and MagStick: Improving One-Handed Target Acquisition on Small Touch-screens. In: AVI 2008, pp. 146–153 (2008)Google Scholar
- 3.Clark, J.: Tapworthy-Designing Great iPhone Apps, pp. 58–60 (2010)Google Scholar
- 7.Parhi, P., Karlson, A., Bederson, B.: Target Size Study for One-Handed Thumb Use on Small Touchscreen Devices. In: Proc. MobileHCI 2006, pp. 203–210 (2006)Google Scholar
- 8.Dandekar, K., Raju, B.I., Srinivasan, M.A.: 3-D Finite-Element Models of Human and Monkey Fingertips to Investigate the Mechanics of Tactile Sense. Journal of Biomechanical Engineering, 685 (2003)Google Scholar