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Vol. 78 (2012) No. 795 p. 3812-3828




This paper proposes a design process planning method evaluating individual technical performances and total product integrity. A planning of design process is a complicated optimization problem including a number of various design variables and various evaluation indices. In order to solve this problem with a reasonable computation cost, this research introduces a two-phase optimization problem. The first phase is defining of process architecture and organization structure and. The second phase is scheduling of resource allocation into activities. A growth curve model with a fuzzy number is used to evaluate the achievement probability of technical performance and its total integrity. This paper demonstrates its application to a student design project. A proposed planning method facilitates a project manager to explore various process plans, to assess their risks, and decide a temporary plan.

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