华智计算机管理信息系统可行性研究报告

华智计算机管理信息系统（HZMIS）可行性讨论报告 目 录1 引言....................................................31.1 编写目的..................................................31.2 背景.......................................................31.3 有关术语解析.............................................31.4 参考资料..................................................42 可行性讨论的前提........................................52.1 要求.......................................................52.2 目标与规模................................................72.3 条件、假定和限制.........................................82.4 进行可行性讨论的方法....................................92.5 评价尺度...................................................93 对现有系统的分析........................................93.1 处理流程和数据流程......................................93.1.1 华智公司概况...........................................93.1.2 系统工作流程..........................................123.1.3 现有系统计算机应用描述................................123.2 工作负荷.................................................133.3 费用开支.................................................143.4 人员.......................................................143.5 设备......................................................153.6 局限性...................................................154 所建议的系统...........................................184.1 对所建议系统的说明.....................................184.1.1 系统结构方案描述......................................184.1.2 HZMIS 系统组成........................................204.2 处理流程和 DFD...........................................214.2.1 系统层（顶层）DFD.....................................214.2.2 功能层 DFD.............................................214.3 改进之处.................................................224.4 影响......................................................234.5 技术条件方面的可行性......................