title: Representing energy efficiency diagnosis strategies in cognitive work analysis.
abstract: This article describes challenges encountered in applying Jens Rasmussen's Cognitive Work Analysis (CWA) framework to the practice of energy efficiency Monitoring & Targeting (M&T). Eight theoretic issues encountered in the analysis are described with respect to Rasmussen's work and the modeling solutions we adopted. We grappled with how to usefully apply Work Domain Analysis (WDA) to analyze categories of domains with secondary purposes and no ideal grain of decomposition. This difficulty encouraged us to pursue Control Task (ConTA) and Strategies (StrA) analysis, which are under-explored as bases for interface design. In ConTA we found M&T was best represented by two interlinked work functions; one controlling energy, the other maintaining knowledge representations. From StrA, we identified a popular representation-dependent strategy and inferred information required to diagnose faults in system performance and knowledge representation. This article presents and discusses excerpts from our analysis, and outlines their application to diagnosis support tools.
authors.affiliation: Cognitive Engineering Laboratory, Department of Mechanical & Industrial Engineering, University of Toronto, 5 King's College Rd., Toronto, Ontario, M5S 3G8, Canada. Electronic address: anthill@mie.utoronto.ca.
authors.forename: Antony
authors.initials: A
authors.lastname: Hilliard
authors.affiliation: Cognitive Engineering Laboratory, Department of Mechanical & Industrial Engineering, University of Toronto, 5 King's College Rd., Toronto, Ontario, M5S 3G8, Canada.
authors.forename: Greg A
authors.initials: GA
authors.lastname: Jamieson
mesh_terms: D019336:Cognitive Science / Q000379:methods*; D004526:Efficiency; D004736:Energy-Generating Resources; D006804:Ergonomics / Q000379:methods*; D006801:Humans; D013597:Systems Analysis; D014584:User-Computer Interface
keywords: CWA; Cognitive; Diagnosis; EID; Ecological interface design; Energy; Engineering; M&T; Monitoring and targeting; Strategies; Systems; Work analysis