![]() ![]() ![]() ![]() This framework for characterizing design activities in terms of evolution and sensitivity will lead to significant reductions in project delivery times. Some examples of these technologies include: three-dimensional (3-D) computer-aided design (CAD) systems, rapid prototyping techniques, rapid tooling and rapid testing techniques, as well as techniques that enable the representation of product designs in a virtual context. The sensitivity of an activity can be determined by evaluating activity constraints, input variables, and the level of design integration. The evolution of an activity can be determined by evaluating the levels of design optimization, constraint satisfaction, external information exchange, and standardization. example weapons systems, aerospace, computers, consumer electronics and automobiles. A methodology for determining the evolution and sensitivity of design activities has been developed through a series of expert interviews. common ground between systems engineering, concurrent engineering. Also, the lower the sensitivity to changes in upstream information, the less risky it is to overlap activities. The faster the evolution of information in an activity, the less risky it is to begin a downstream activity before the upstream activity is finalized. Evolution and sensitivity characterizations of design activities provide a practical tool for identifying overlapping opportunities. For example, applying concepts of parallelism during the Boeing 777 transport design resulted in a time compression of 1.5 years as compared to its predecessor. A common method used to reduce project delivery time is to overlap sequential activities. ![]()
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