【摘要】 分析了数据流程图方法的局限性，提出了一种基于对象的改进数据流程图方法。该方法用对象关系图描述信息系统的结构，用改进的数据流程图来描述每个对象内部处理关系。更多还原

【Abstract】 The limits of the data flow diagram method were analysed and then the method of the object-oriented revised flow diagram were put forward.The structure of the information systems was described with objects-related diagram.As for the discussion on all the object processes,the revised data flow diagram was also involved.更多还原