关键词: 产品开发, 重叠模型, 综合信息影响量, 仿真, 优化

Abstract: In view of the disadvantages of current overlapping planning method in concurrent product development process, information evolution characteristics of upstream activity were analyzed. Information evolution mode of upstream activity was described by information accumulation function and non-stationary Poisson process. Based on the concept of comprehensive information influence quantity, information communication strategy and rework impact function of downstream activity were proposed. Aiming at two different modes of overlapping model, a uniform time computing model was constructed. According to the maximization principles of global gain, an objective decision model of overlapping planning was presented. Simulation method was proposed to replace traditional mathematical analytic method and optimize overlapping model. And the advantages and steps of the method were presented. Finally, an example was given to illustrate the feasibility and effectiveness of the proposed method.

Key words: product development, overlapping model, comprehensive information influence quantity, simulation, optimization