本文通过介绍与大客户系统有相似业务概念的用户回访系统的设计实现，说明中间件的通用性设计的重要性及优点。
This paper introduced a user return visit system, which is similar to big customer system in business concept. The importance and merit of general purpose pieces design in the middle tier are proved.
大客户的另一常见需求是与他们的采购系统的交互，以便购买订单能够自动地输入进商业环境中。
Another frequent requirement of large customers is integration with their procurement systems, so that purchase orders are automatically punched into the commerce environment.
然后从事电脑安全的企业 RSA，它的服务器被黑客破坏，这个攻击或许导致RSA大客户 Lockheed Martin的 电脑防御系统失效。
Then computer security firm RSA had their servers breached, an attack that may have led to the hacking of defence giant Lockheed Martin, an RSA client.
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