市场竞争越来越激烈,利润也越来越薄,因此许多企业都比以前更加关注供应链管理以赢得竞争优势。直到20世纪90年代,产品从生产环节送至消费者手中所花费的平均时间仍需15～30天左右。有些情况下这个周期还会更长。这种从订货到发货的运作模式通常包含:通过电话、传真、电子数据交换系统以及公共信箱 As the market becomes increasingly competitive and profits are getting thinner and thinner, many companies are paying more attention to supply chain management than ever to gain a competitive edge. Until the 90s of the 20th century, the average time it took for products to reach the consumers from the production link still needed about 15 to 30 days. In some cases this cycle will be longer. This order from the delivery mode of operation usually include: by telephone, fax, EDI systems and public mail