Investigating the anaesthesiologists' practice through externalist and internalist approaches
EACE '05 Proceedings of the 2005 annual conference on European association of cognitive ergonomics
The development of a cognitive work analysis tool
EPCE'07 Proceedings of the 7th international conference on Engineering psychology and cognitive ergonomics
A four-way framework for validating a specification
SAICSIT '10 Proceedings of the 2010 Annual Research Conference of the South African Institute of Computer Scientists and Information Technologists
Task analysis for behavioral factors evaluation in work system design
HCD'11 Proceedings of the 2nd international conference on Human centered design
An approach to designing interactive decision aid for cardiac patients
BCS-HCI '11 Proceedings of the 25th BCS Conference on Human-Computer Interaction
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Work domain analysis (WDA) has been applied to a range of complex work domains, but few WDAs have been undertaken in medical contexts. One pioneering effort suggested that clinical abstraction is not based on means-ends relations, whereas another effort downplayed the role of bio-regulatory mechanisms. In this paper it is argued that bio-regulatory mechanisms that govern physiological behaviour must be part of WDA models of patients as the systems at the core of intensive care units. Furthermore it is argued that because the inner functioning of patients is not completely known, clinical abstraction is based on hypothetico-deductive abstract reasoning. This paper presents an alternative modelling framework that conforms to the broader aspirations of WDA. A modified version of the viable systems model is used to represent the patient system as a nested dissipative structure while aspects of the recognition primed decision model are used to represent the information resources available to clinicians in ways that support ‘if...then’ conceptual relations. These two frameworks come together to form the recursive diagnostic framework, which may provide a more appropriate foundation for information display design in the intensive care unit.