The system is based on four-layer and it is far-distance information system on library.It includes four parts: the Client, ADO groupware layer, OLEDB database layer and operation logic layer.

• 该系统是基于四层结构创建的远程图书管理信息系统，分为：客户端，ADO组件层，OLEDB数据层，和业务逻辑层。