Abstract
The Recursive-Diagnostic Framework (RDF) is presented as a way of modelling information in the Intensive Care Unit (ICU). The RDF motivated an exploratory field study of ICU information use, resulting in an ICU information inventory and the definition of 10 design goals. In conjunction with these outputs the RDF also informed the design of a paper prototype. The overall design structure was based on the physiological dimension of the RDF. From the information inventory, elements of situation (the decision dimension of the RDF) were added. Specific design elements were developed, evaluated, and refined iteratively using scenarios based in the data sets of six de-identified patient records. The RDF and the outputs of analysis were useful in determining the overall structure of the design and the grouping of complex decision and physiological data, while the design goals from the exploratory field study assisted in maintaining design priorities and focus.
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