A method for the comparison of design options for allocating communication media in a cooperative and safety-critical context

In this paper we present the MECHA method for evaluating and comparing design options for communication media that pays particular attention to how they support cooperation in an interactive safety-critical system. The comparison is performed using three sets of criteria based on: task performance, analysis of user deviations and consequent hazards, and coordination. We illustrate the method by applying it to the design of how to allow access to new communication technology in an Air Traffic Control environment.