| Summary: | 碩士 === 國立東華大學 === 企業管理學系 === 94 === This study investigates a multiple-phase new product development (NPD) project model which explicitly models process and resources allocation into different NPD process as a sequential, functional development process and a parallel process. The development process of a project defines the flows of work among development phases and the completion of development tasks within each phase. The effectiveness of resources constrains the rate at which different development activities are performed by limited development capacity. The resource allocations of such processes have two different strategies; one is assigning the resources to a project into late development cycle, and the other is to early development cycle. Four different types of supplier involvement, named arm’s length, routine, critical, and strategic development, are also included into the NPD system. Moreover, the robustness and equilibrium analysis of the NPD system is examined by using additional workload impacts. Our experiment results show that when the NPD process is parallel, the resources should be allocated into the early development cycle in order to achieve the best performance; if the process is sequential, the resources should be allocated into the late development cycle to improve the system performance. Moreover, when the pulse are higher than one third in the parallel process, the system could not return to the original stable state and go into another worse equilibrium state. When in the sequential process, the system would not affect by the pulse and quickly return to the initial stable state. Under the environment of parallel NPD process and the resources are allocated into the early development cycle, when the utilization are higher or the testing delay are shorter, the system would become more sensitive and easily to fall into another worse state. On the opposite, if the utilization is lower, the system’s performance would be improved. However, too long testing time would not improve the system performance. In the supplier involvement NPD system, when under arm’s length development, the system’s performance would be better for the supplier to apply additional resources into the system. When the supplier relationship is routine development, the resources changed could make the system become better but the allocated ratio do not have obviously distinction. When under critical development, the manufacturer should take care for the resource allocated ratio. If the manufacturer putting excessive resources to connect with the supplier can not make the system become better. In the strategic development, both the manufacturer and the supplier should pay more attention into the ratio of the resources allocation because when the resources are insufficient, the success from the collaboration would not achieve.
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