An approach to designing interactive decision aid for cardiac patients

The design of interactive decision aids for patients is challenging because there are few if any guidelines for information design for such devices. In this paper, we look at designing an interactive decision aid through the use of Cognitive Work Analysis (CWA) for cardiac patient needs. We focus on three analysis phases: work domain analysis (WDA), control task analysis, and strategies analysis. We discuss these three phases of the CWA, how we collected user needs using focus groups, and how the content of support is represented in each of these three levels. Finally, we discuss how the three levels influenced our design recommendations and ideas for how the information is presented.