Abstract
The requirements of maintaining supervisory control of a complex system may sometimes exceed the capability of the human operator for a variety of reasons ranging from temporary distraction from the main task to excessive mental workload. The ergonomic aspect of complex supervisory control can be improved by augmenting the interface with expert systems. This paper outlines the development of an intelligent warning system as one component of an augmented supervisory control system for complex aircraft. The system is designed to alert the pilot to potentially hazardous conditions during instrument landing approaches. The process of task analysis that precedes the implementation of the system is outlined, drawing on the experience of a former military pilot. The results and methods shown here can be generalized to other components of the pilot's task and, more generally, to other complex supervisory control tasks.
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