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In this paper, we present a new approach to interaction modelling based on the concept of information resource. The approach is inspired by recent distributed cognition (DC) literature but develops a model that applies specifically to human-computer interaction (HCI) modelling. There are of course many approaches to modelling HCI and the motivation of this(More)
THEA is a technique designed for use by interactive system designers and engineers to help anticipate interaction failures. These may become problematic once designs become operational. The technique employs a cognitive error analysis based on an underlying model of human information processing. It is a highly structured approach, intended for use early in(More)
Usability problems associated with virtual environments are a serious obstacle to their successful development. One source of these problems is that virtual environment toolkits provide only a small number of predefined interaction techniques that are expected to be used regardless of context, hence developers are not encouraged to consider interaction. In(More)