Then, this paper sets forth the theory basis of purchase decision, including ERP system, purchasing process, and purchasing systematic flow in ERP , etc.

• 接下来，本文阐述了采购预测与决策的理论基础，包括对ERP系统的简单介绍，采购决策的过程以及在ERP环境下采购决策的系统流程和ERP对采购决策的作用等等。