Multiplicity of users -
multiplicity of needs and preferences

Timo Honkela
UIAH Media Lab
Hämeentie 135 C
FIN-00560 Helsinki

Abstract

Designers and developers of any system tend naturally to look at the use of system from their personal point of view. This includes all the abilities, knowledge and views the developer may or may not have. Understanding the potential variety of users and to take into account in the design decisions is a challenging task. One may also question the usefulness of rigid systems which cannot be adapted by the user to her or his needs.

The following list of variety among human beings should make it apparent that "design for all" is a serious challenge.