目录 1引言 3 1.1编写目的 3 1.2背景 3 1.3定义 3 1.4参考资料 3 2总体设计 3 2.1需求规定 3 2.2运行环境 4 2.3基本设计概念和处理流程 4 2.4结构 5 2.5功能需求与程序的关系 5 2.6尚未解决的问题 6 3接口设计 6 3.1用户接口 6 3.2外部接口 7 3.3内部接口 7 4运行设计 8 4.1运行模块组合 8 4.1.1 用户管理模块 8 4.1.2 数据库模块 8 4.1.3 系统应用模块 8 4.2运行控制 8 4.3运行时间 8 5系统数据结构设计 9 5.1逻辑结构设计要点 9 5.2物理结构设计要点 9 5.3数据结构与程序的关系 9 6系统出错处理设计 9 6.1出错信息 9 6.2补救措施 9 6.3系统维护设计 10

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