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http://dx.doi.org/10.5143/JESK.2005.24.1.047

Usability Analysis for Designing Mobile Phones Based on Universal Design for the Elderly  

Yim, Jang-Bin (터보테크(주)정보통신연구소)
Park, Min-Yong (한양대학교 산업공학과)
Publication Information
Journal of the Ergonomics Society of Korea / v.24, no.1, 2005 , pp. 47-53 More about this Journal
Abstract
The purpose of this study was to evaluate performance and subjective satisfaction of mobile phone's interface elements considering the elderly users. First, mobile phone's interface elements were outlined recent foreign and domestic studies. Then, final three mobile phone's interface elements were determined by expert rating, AHP analysis, and questionnaire analysis. Objective and subjective measures were then used to determine the effects of several specific design parameters and aging differences on performance of mobile phones. In this experiment, 38 subjects and 4 independent variables were used to measure task completion time and user's subjective satisfaction. The statistical analyses indicated significant aging differences between older people and younger people in terms of keypad type and bell sound level in performance. Significant aging differences were also found for user subjective satisfaction. It is suggested that some major results from this study be used to develop mobile phone design guidelines that are more usable and accessible for most users, particularly for older users.
Keywords
Mobile phone interface elements; Aging difference; Universal design;
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