

Design principles based on cognitive aging
pp. 3-10
in: Julie Jacko (ed), Human-computer interaction. Interaction design and usability, Berlin, Springer, 2007Abstract
This study proposes the design principles considering the balance of "simplicity" and "helpfulness" based on cognitive aging. Due to the increase of the aging population, various equipments are required to better assist the elderly users. ATMs (Automatic Teller Machine) have always been considered to be equipment that is difficult for the elderly users. Then this paper discusses a new ATM interface design considering the principles. The effectiveness of the new design was examined by comparing it with a conventional ATM. The usability test results favored the new ATM design, and it is consequently accepted by many elderly users.