Modeling the task: Leveraging knowledge-in-the-head at design time
Jacob, Robert J.K.
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A key problem in Human Computer Interaction is the evaluation and comparison of tasks that are designed in different interaction styles. A closely related problem is how to create a model of the task that allows this comparison. This paper tries to tackle these two questions. It initially presents a structure (Specific User Knowledge Representation) that allows the creation of task models which allow direct comparisons between different interaction styles. The model allows the researcher or the designer to evaluate an interaction design very early in the design process.