INTERACT'99 Workshop .' Making Designers Aware of Existing Guidelinesfor" Accessibility Position paper for the IFIP TC.13 INTERACT'99 Workshop: Making Designers Aware of Existing Guidelines for Accessibility (31 August 1999) Designing for ordinary and extraordinary users Norman Aim Department of Applied Computing Dundee University Dundee, DDI 4HN, Scotland e-mail: Nalm(~comoutin~,dundee.ac.uk Kenryu Nakamura Department of Special Education Kagawa University Takamatsu, Kagawa, Japan e-mail: KenLvu@ed.kagawa-u.ac.jp (with acknowledgement to Alan F. Newell) There are a number of arguments which can be advanced to convince designers to take all potential users into account at the initial stages of any design process. In the US and to some extent in Europe, legislation requires that people with disabilities are not marginalised. This kind of legislation embodies the social and ethical values that all people matter, but also practical issues such as ensuring that a society benefits fully from the contributions which all of its citizens can make. An economic argument for equal access would have the advantage of not depending on cumbersome enforcement procedures. It would in effect be self-enforcing, being driven by the forces of the marketplace. Thus far it has proved difficult to produce convincing economic arguments to back up the worthwhile goal
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