Turing machine task analysis: a method for modelling affordances in the design process
by Thierry Morineau
International Journal of Design Engineering (IJDE), Vol. 4, No. 1, 2011

Abstract: Recently, the affordance-based approach was promoted as an ecological design methodology integrating the user-object interaction dimension. However, the number of properties afforded by an object can potentially be very large. We present a new method called Turing machine task analysis (TMTA). This method is respectively founded on ecological psychology and Turing machine formalism. This method allows for identifying relevant affordances in the scope of a particular task and possible user-object configurations that can involve degraded situations of interaction. We illustrate the application of TMTA on the task of writing a message on a paper with a pen. We conclude that TMTA can help the designer to explore affordances through a formalised simulation of task.

Online publication date: Tue, 30-Sep-2014

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