Optimization of GUI on Touchscreen Smartphones Based on Physiological Evaluation – Feasibility of Small Button Size and Spacing for Graphical Objects
Prompted by the increasing popularity of smartphones, we experimentally investigated how command button size and spacing influences users’ operation and experience of the device. We measured user performance (input accuracy and operation time) and assessed physiological and psychological reactions. Tests were performed for a range of button sizes, spacing and handling modes. While large button size (9 mm) increased user comfort, a size of 7 mm aroused more user excitement, suggesting that user-interface design guidelines should be revised for uses such as games and amusement.
KeywordsGUI touchscreen smartphone physiological evaluation interest
Unable to display preview. Download preview PDF.
- 1.Microsoft: Windows Dev. Center: Touch interaction design (Windows Store apps) (January 13, 2013), http://msdn.microsoft.com/ja-jp/library/windows/apps/hh465415
- 2.Apple: iOS human interface guideline (2011)Google Scholar
- 3.Nokia: NOKIA Developer: S60 5th Edition C++ Developer’s Library v2.1 (January 13, 2013), http://library.developer.nokia.com/index.jsp?topic=/S60_5th_Edition_Cpp_Developers_Library/GUID-5486EFD3-4660-4C19-A007-286DE48F6EEF.html
- 4.Ogawa, S.: Concept of playing—the basis of intent—the collection of treatises of economics research center, vol. 26, pp. 99–119 (2003)Google Scholar
- 5.ISO9241-9: Ergonomic Requirements for Office Work with Visual Display Terminals (VDTs) –Part 9, Requirements for Non-Keyboard Input Devices (2000)Google Scholar