Juliet Richardson

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Recently, the role of task analysis in design has been brought into question. It has been argued, for example, that task analysis leads to the non-creative redesign of existing artefacts. In this paper. we offer a view of task analysis that resolves this problem. In particular, we argue that by focusing upon the analysis of user/operator goals rather than(More)
In this paper, we argue that existing languages for representing routine cognitive tasks (such as GOMS, UAN, and PDL) can fail either because they demand that task competence is described using serial position to determine temporal order (and they are therefore overly restrictive) or because they demand that partial orderings are specified with temporal(More)
How do people control interactive search? One type of decision that is made when performing a task such as searching the web is whether to continue to explore unattractive but immediately available links or to backup to previously experienced links. It has recently been suggested that this choice may be governed by a preset threshold. We report empirical(More)
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