Aging and mobile displays: Challenges and requirements for agesensitive electronic information designs
Mobile devices represent one of the fastest growing technological fields. Especially, small interface devices are ubiquitous and are increasingly penetrating all fields of the working and private lives. One of the most serious challenges for a usable design is the question how information on the small displays can be “optimally presented. Especially for older users, which represent a increasingly important user group, it is central that the information is designed with care. On the one hand, information displayed should be easily readable. This demand requires a low information density and a sufficient font size. On the other hand menu orientation is facilitated when the amount of information per screen is maximized and a large preview is allowed. This demand requires to present as many functions as possible on the screen at a time. Thus, the tradeoff between readability concerns and orientation demands is crucial. In this research, this tradeoff was experimentally investigated. The effects of font size and the number of functions per screen on the effectiveness and efficiency of navigation performance were observed. 40 older participants solved common phone tasks twice consecutively on a simulated mobile phone. Results revealed that both factors contributed to performance, but showed a strong interaction: navigation performance was optimal when font size and the size of the preview was large. The lowest performance was present when the preview was small and the font size large, showing that the proper orientation is more important than the impact of visibility demands.
Martina Ziefle
Human Technology Centre (HumTec), RWTH Aachen University, Theaterplatz 14; 52056
国际会议
17th World Congress on Ergonomics(第十七届国际人类工效学大会)
北京
英文
1-11
2009-08-09（万方平台首次上网日期，不代表论文的发表时间）