Modeling “deranged” Physiological Systems for Ku Information System Design

The Cognitive Work Analysis (CWA) framework has recently been applied to the design of patient monitoring systems in amte care medical settings. Work Domain Analysis (WDA), models the problem field in which people act. We argue that the most widely-used form of WDA which uses an abstraction-decomposition space (ADS) may not be the most effective form when applied to ICUs. We propose an approach based on the cybernetic hierarchical control model ofBeer (1981) and the systems approach of Forrester (1971).