目录
1。问题描述 ..........................................................................................................................................1
1.1 背景.....................................................................................................................................................1
1。2 编写目的 ...........................................................................................................................................1
1。3 功能要求 ...........................................................................................................................................1
2。可行性分析 ......................................................................................................................................1
3.需求分析 ............................................................................................................................................2
3。1 需求分析 ...........................................................................................................................................2
4 系统概要设计 .....................................................................................................................................3
4。1 数据流图 ...........................................................................................................................................3
4.2 数据字典 .............................................................................................................................................7
5。概念结构设计...................................................................................................................................8
5.1 E—R 图 ...............................................................................................................................................8
5。2 实体及属性的定义 ...........................................................................................................................9
6.逻辑结构设计...................................................................................................................................11
7。物理结构设计.................................................................................................................................12
8.触发器设计 ......................................................................................................................................12
9.数据库的实施和维护 .......................................................................................................................13
10.结束语 ............................................................................................................................................15