How universal is good design for older users?

Abstract

This paper attempts to illustrate the way in which multiple considerations influence interface design decisions when designing for older users. The arguments are supported by examination of issues that arose during the design of a successful email system for older users. The point is also made that while the interface design decisions made in the example do assist older users, they limit the power of an application to serve younger, more able and more demanding users. The argument is made that while it is possible to increase accessibility, the most obvious ways of doing this limit the universality of the resulting application.