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Towards a theory-based form of cognitive task analysis of broad scope and applicability.

CBU number: 3779
Authors: Barnard, P & May J.
Reference: Cognitive Task Analysis. Chapter 10. 147-163. Schraagen, J.M.C., Chipman, S.F., & Shalin, V.L. (Eds.) Publisher Mahwah, NJ: Lawrence Erlbaum Associates, Inc.
Year of publication: 2000
Abstract text: This chapter outlines the general case for developing theory-based forms of cognitive task analysis of broad scope and applicability, and illustrates one means of realising this objective. A particular cognitive architecture is described, Interacting Cognitive Subsystems, together with an outline characterisation of the mental representations assumed to underpin perfomance in complex cognitive tasks. This theoretical specification is used to derive a form of approximate model that describe abstract properties of cognitive activity in terms of four components: (1) the configurations of processes involved in a task, (2) the capabilities of individual processes for transforming one form of mental representation to another, (3) the memory records laid down, accessed and used in task performance and (4) a characterisation of the overall dynamic control and co-ordination of the complete mental mechanism. Three routes for applying this type of modelling framework are outlined. The overall characteristics of the approach are illustrated using the most informal of the three methodologies. These illustrations were selected to cover action sequences, and the use of complex graphical interfaces to computer systems. Other potential uses of the method are briefly referenced and wider considerations discussed.
Annual report number: CBUAR 44
Keywords: Book Chapter

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