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Journal Articles Theoretical Issues in Ergonomics Science Year : 2009

Turing Machine as an ecological model for Task Analysis


We present a new model for task analysis based on the ecological approach initiated by Cognitive Work Analysis (CWA). This model aims to improve the implementation of the theoretical principles involved in the ecological approach of a work system. More precisely, under current CWA, task analysis uses Rasmussen's ladder. However, this approach fails to highlight the contextual constraints on the task. Our model is based on the Turing Machine formalism and takes into account the variety of situations that can be experienced by an agent, and especially degraded situations of work. Moreover, it can model the concept of affordance specifying information. We show that this formalism can be applied to a prototypical task like opening a door.
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hal-00334142 , version 1 (24-10-2008)



Thierry Morineau, Emmanuel Frenod, Caroline Blanche, Laurence Tobin. Turing Machine as an ecological model for Task Analysis. Theoretical Issues in Ergonomics Science, 2009, 10 (6), pp.511--529. ⟨10.1080/14639220802368849⟩. ⟨hal-00334142⟩
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