[[abstract]]The authors present a structured design methodology for automation requirements analysis, specification, prototype design, and product development, and describe the design and software implementation of a design support system for crew system automation that incorporates multidisciplinary computer-aided design and engineering procedures, tools, databases, and models. Future enhancements that impact the effectiveness and efficiency of designs produced using such a computer-aided engineering tool are discussed and contrasted with the labor-intensive manual methods of today. The major benefits of the design process and design support tools are summarized. Particular attention is given to the use of the modified Petri-net formalism. The capability of the expert model-based design methodology and the prototype design support systems to produce a superior crew system design are currently being demonstrated and evaluated in conjunction with a full-mission manned system simulation[[fileno]]2020419030008[[department]]工工
