Product Development Process Modeling Based on Information Feedback and Requirement Cooperation

摘要

The objective of product development process modeling is to satisfy the process requirements. There exist both conflicting and cooperative relationships among the process requirements and these relationships could deeply affect the development process modeling. In this study, the macro-feedback and micro-feedback models of product development process are developed based on information feedback. By analyzing the conflicting or cooperative relationships among the process requirements, the reasoning scheme for inferring the relationships between the requirements and information, and the feedback control mechanism are developed. Using the proposed method, three reorganization activities, reorganizing the constraints, reorganizing the process, and reorganizing the structure of a designer's preference, can be carried out to transfer the balance point of the development process from one point to another or be optimized at the initial place. The case study shows that the macro-feedback and micro-feedback modeling of a product development process based on information feedback and requirement cooperation is an important method to realize lifecycle design, optimize the whole development process and product performance, capture the designer's preferences, and satisfy the process requirements.