本网上书店系统是基于集中统一规划的数据库数据管理新模式设计的。在对书本、用户、订单、管理员信息的管理，其实是对书本、用户、订单、管理员数据的管理。它的开发过程也就是多层分布式应用程序的创建过程，其中包括：数据层、中间层、表示层，开发多层分布式应用程序的一个可能的方案是一次创建一层，多半是从数据层开始，然后移到中间层业务规则对象，最后创建用户界面层。-The online bookstore system is based on the centralized and unified planning new model of data management database design. In the books, customers, orders, administrator of information management, in fact, is the books, customers, orders, data management administrator. Its development process is multi-tier distributed application creation process, including: data layer, intermediate layer, that layer, the development of multi-tier distributed applications, a possible scenario is a creation of a layer, mostly from the data layer to start, and then moved to middle-tier business rules object, and finally to create the user interface layer.