复杂产品, 产品分解结构（PBS）, 工作分解结构（WBS）, 合成映射

In order to ensure the complete work breakdown,a decomposition method of WBS for complex products was presented. The PBS was the source of WBS in the decomposition of work. By the analysis of mapping type, definition of mapping model, preparation of mapping matrix and establishment of mapping rules, the data transform from PBS to WBS was completed. Based on this method, it is rapid to construct the WBS view and effectively to ensure the accurate conversion from PBS to WBS. And a prototype system was developed. Finally, an application example of the work decomposition of launch vehicle was provided to validate the correctness and feasibility of this method.