New concepts in engineering processes for developing integrated task environments

Engineering processes and methodologies used in building tomorrow´s systems must place a greater emphasis on users and their tasks, especially in light of advanced capabilities being implemented, regardless of whether these are automated data processing systems, real-time embedded systems, intelligent user interfaces, intelligent training systems, or knowledge-based performance support systems. This paper is focused on identifying those changing components of the overall system design process which are necessary to develop usable and useful integrated task environments. Key to successful integrated task environment development is an increasing emphasis on defining appropriate design processes, based on operationally-focused scenarios and cognitively-based models of the user, their tasks and the interface; and an integration of these processes within existing systems and software development processes