Decision-centered design requirements

Some of the shortcomings of methods of establishing user needs and system requirements are described, and a method of decision-centered design is proposed. This method would ensure that decisions central to a task are identified and that those decisions would serve as the focus of the design. In addition, because the requirements would come from the decision makers, user input enters the design cycle in the very early stages of system development. The method would more clearly convey user goals and intent to the designer. Two methods of determining design requirements, critical decision method (CDM) interviewing and concept mapping, are described. In addition, the authors discuss two applications of CDM and concept mapping in determining decision-making requirements. The first deals with the design of a crew position aboard a surveillance aircraft. The second concerns the redesign of anti-air warfare positions in the combat information center of naval vessels