Research on Four-Tiered Data Management Model in E-Commerce
支持四层结构的电子商务数据管理模型的研究

E-Commerce is one of the applications of Internet that have mostly influenced and changed people's life in the whole world,and it is even more popular today. Lots of new technologies, such as Java Server Pages(JSP) .Extensible Markup Language(XML)and Workflow,have been implemented in E-Commece. With more functions provided, the burden of Web server is overwhelming. A four-tiered client/server architecture proposed in this paper was used to reduce the burden of the Web server by adding an application server between Web server and database server. And in this model,mobile Agents were used to "connect" the application server and database server.