Representations in Human–Computer Systems Development |
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Authors: | D Benyon |
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Affiliation: | (1) Napier University, Edinburgh, UK, GB |
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Abstract: | When system developers design a computer system (or other information artefact), they must inevitably make judgements as
to how to abstract the domain and how to represent this abstraction in their designs. Over the years human–computer interaction,
or more generally information systems design, has had a history of developing competing methods and models for both the process
and products of its development. Various paradigms have been suggested, often trying to keep pace with the changing nature
of the design problem; from batch processing to interactive systems to work situations and most recently to designing for
household environments. It appears timely, then, to review the nature of the design problem that faces the developers of human–computer
systems and to consider some of the impact that different representations and different conceptualisations may have on their
activities. Green (1998) has suggested that a single model of developing human–computer systems is not desirable, instead
arguing for a number of limited theories each of which provides a useful perspective. The aim of this paper is to place competing
methods side by side in order to see their strengths and weaknesses more clearly. The central tenet of the paper is that different
views of both the human–computer system design process and the different abstractions, or models, that are produced during
the design process have varying degrees of utility for designers. It is unlikely that any single method or modelling approach
will be optimal in all circumstances. Designers need to be aware of the range of views that exist and of the impact that taking
a particular approach may have on the design solution. |
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Keywords: | : Design approach – HCI – Human computer systems – Models |
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