关键词: 网络协作设计, 任务分解策略, 任务粒度设计

Abstract: The networked collaboration design among enterprises is an important method to promote their competitive capacity. However， the task decomposition and task granularity design are the first step of networked collaborative design planning. Aiming at the problems of the traditional task decomposition method， a qualitative task decomposition strategy based on project-task-activity frame was provided， after employing the software metrics conception in software engineering， the calculation formula of task cohesion was constructed and a new method for task granularity design was put forward from the viewpoint of quantitative analysis. Furthermore， this method could make an exact evaluation for different task granularity design of complex product cooperation workflow in networked collaborative environment， as well as provide flexible organization and effective management for different design process. Finally， an example of automobile body collaborative conceptual design was provided to illustrate the application of this method.

Key words: networked collaboration design, task decomposition strategy, task granularity design, heuristic rules0引言