中文提要
本文通过对从事电子制造服务业某企业的 S 项目的交货及时率和库存管理研究，对
项目供应链进行了分析和诊断，并提出了提高供应链灵活性和可靠性的改善方案：即推
广供应商管理库存、准时制采购、采购提前期的缩短、并同时改善 MRP 参数设置和引人
闭环的 MRP 模拟技术。通过一年时间对这些改善措施的实施，取得了令客户和企业都比
较满意的效果。

关键词：电子制造服务（EMS） 交货及时率（OTD）
供应链（Supply Chain） 供应商管理库存（VMI） 准时制采购（JIT）
作 者：吉 浪
指导老师：周华明
Abstract
This article was a case study of S project in EMS (Electronic Manufacturing Service)
industry which focused on OTD (On Time Delivery) and inventory management. By analyzing
and diagnosing it’s supply chain, the author brought forward the proposal to improve supply
chain flexibility and reliability through promotion of VMI (Vendor Management Inventory) 、
JIT (Just In Time) purchase、Lead Time Reduction together with MRP parameter resetting and
implementation of MRP simulation techniques．After one year of implementation and
improvement, the OTD and inventory performance was satisfactory to both customers and EMS
itself．
Key Words: EMS (Electronic Manufacturing Service) OTD (On Time Delivery)
Supply Chain VMI (Vendor Management Inventory) JIT Purchasing
Written by: Lang Ji
Supervised by: Huaming Zhou