sdfsf

According to the different characteristics of products and different cooperation level between business entities, order is classified as fixed type and forecast type, which is the foundation of SDCP.

基于实体之间协作的密切程度不同及供需项目特征的差异，将订单划分为确定型和预测型两种类型，为设计实体之间的供需协作模式奠定了基础。