进货管理系统为操作员提供主功能界面。

进货管理系统在启动时要求操作员输入ID和口令，只有ID和口令正确，才可以进入系统的主功能界面。

操作员负责对进货管理系统的维护工作，因此系统应赋予操作员对系统信息、进行录入、修改、查询和删除等功能的操作权限。

操作员作为代理实现进货基本信息管理业务。

供货商信息、货物信息保存在对应的数据库表中。

-Stock management system for the operator interface provides the main function. Stock management system at startup request the operators to key in ID and password, only the ID and password correctly, before they can enter the system the main function of the interface. Operator is responsible for stock management system for maintenance work, so the system operator should be given information on the system for entry, modify, query and delete functions of the operating authority. Operator as a purchasing agent to achieve the basic information management business. Supplier of information, goods information stored in the corresponding database table.