As computer systems become increasingly more pervasive in everyday life, it is simultaneously becoming ever more important that the concept of universal access is accepted as a design mantra. While many physical impairments and their implications for human-computer interaction are well understood, cognitive impairments have received comparatively little attention. One of the reasons for this is the general lack of sufficiently detailed cognitive models. This paper examines how cognitive impairments can affect human-computer interaction in everyday life and the issues involved in trying to make information technology more accessible to users with cognitive impairments.
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