1.引言 ............................................................................................................................................. 1
1.1 编写目的 ............................................................................................................................. 1
1.2 项目背景 ............................................................................................................................. 1
1.3 定义 ..................................................................................................................................... 3
1.4 参考资料 ............................................................................................................................. 4
2.任务概述 ..................................................................................................................................... 4
2.1 目标 ..................................................................................................................................... 4
2.2 运行环境 ............................................................................................................................. 5
2.3 条件与限制 ......................................................................................................................... 5
3.数据描述 ..................................................................................................................................... 6
3.1 静态数据 ............................................................................................................................. 6
3.2 动态数据 ............................................................................................................................. 6
3.3 数据库介绍 ......................................................................................................................... 7
3.4 数据词典 ............................................................................................................................. 7
3.5 E-R 图 ................................................................................................................................. 9
3.6 数据采集 ............................................................................................................................. 9
3.7 系统数据流图 ..................................................................................................................... 9
4.功能需求 ................................................................................................................................... 13
4.1 功能划分 ........................................................................................................................... 13
4.2 功能描述 ........................................................................................................................... 13
5.性能需求 ................................................................................................................................... 24
5.1 数据精确度 ....................................................................................................................... 24
5.2 时间特性 ........................................................................................................................... 24
5.3 适应性 ............................................................................................................................... 25
6.运行需求 ................................................................................................................................... 25
6.1 用户界面 ........................................................................................................................... 25
6.2 硬件接口 ........................................................................................................................... 28
6.3 软件接口 ........................................................................................................................... 28
6.4 故障处理 ........................................................................................................................... 28
7.其它需求 ................................................................................................................................... 29
7.1 正确性 ............................................................................................................................... 29
7.2 可维护性 ........................................................................................................................... 29
7.3 可移植性 ........................................................................................................................... 29
7.4 软件的完整性 ................................................................................................................... 29
7.5 软件的安全性 ................................................................................................................... 29