Using Cognitive Work Analysis to Drive Usability Evaluations in Complex Systems

Author(s):  
Aren Hunter ◽  
Tania Randall
Author(s):  
Neelam Naikar ◽  
Brett Pearce ◽  
Dominic Drumm ◽  
Penelope M. Sanderson

We present a technique for team design based on cognitive work analysis (CWA). We first develop a rationale for this technique by discussing the limitations of conventional approaches for team design in light of the special characteristics of first-of-a-kind, complex systems. We then introduce the CWA-based technique for team design and provide a case study of how we used this technique to design a team for a first-of-a-kind, complex military system during the early stages of its development. In addition to illustrating the CWA-based technique by example, the case study allows us to evaluate the technique. This case study demonstrates that the CWA-based technique for team design is both feasible and useful, although empirical validation of the technique is still necessary. Applications of this work include the design of teams for first-of-a-kind, complex systems in military, medical, and industrial domains.


2003 ◽  
Author(s):  
Michelle Rogers ◽  
Marta L. Render ◽  
Richard I. Cook ◽  
Robert Bower ◽  
Mark Molloy

Author(s):  
Thierry Morineau ◽  
Mounia Djenidi-Delfour ◽  
Fabrice Arnault

This study describes the concept of affordance-based procedure and its implementation in a triage station in a hospital emergency department. Rather than seeking to increase operators’ adherence to procedures, an affordance-based procedure (1) aims to induce task steps using affordances that also (2) support degrees of freedom for action. The design of this procedure was guided by the application of an extended version of cognitive work analysis, named “heuristic cognitive work analysis.” This design process produced a new procedural document: a reception card. Ten months after its implementation, a qualitative evaluation with 10 triage nurses shows that the reception card is viewed as supporting coordination between the different nurses’ tasks and providing an external memory to cope with frequent interruptions during high patient inflow, even though the document is used for convenience and with unexpected and partial uses of its items. The document assessed also afforded emerging benefits, that is, acceleration of ambulance release, higher level of confidentiality, assistance for staff hand-overs. Finally, novice triage nurses are particularly sensitive to the benefits brought by this affordance-based procedure.


2013 ◽  
Vol 8 (1) ◽  
pp. 3-22 ◽  
Author(s):  
Tizneem Jiancaro ◽  
Greg A. Jamieson ◽  
Alex Mihailidis

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