第一阶段,对产品结构进行分解,得到产品结构数据模型,并在得到产品分解结构的基础上借助九屏幕法对产品进行相关资源分析。
The first stage , decomposed the product structure , built the data model of the product structure , and analyzed the related resources of product with nine-screen method based on the product breakdown structure .