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.........................................................................................................................5
2. 任务概述........................................................................................................................5
2.1 目标.................................................................................................................................5
2.2 用户的特点....................................................................................................................6
2.3 假定和约束....................................................................................................................7
3. 系统需求详细说明....................................................................................................7
3.1 组织结构........................................................................................................................8
3.2.数据字典..............................................................................................................................8
3.3 数据流图..............................................................................................................................11
4. 需求规定...............................................................................................................................12
4.1 对功能的规定......................................................................................................................12
4.2 对性能的规定......................................................................................................................13
4.2.1 精度...............................................................................................................................13
4.2.2 时间特性要求................................................................................................................13
4.2.3 灵活性.......................................................................................................................14
4.3 数据管理能力要求..........................................................................................................14
4.4 故障处理要求..................................................................................................................15
4.5 其他专门要求..................................................................................................................15
5. 运行环境规定...............................................................................................................16
5.1 设备..................................................................................................................................16
5.2 支持软件..........................................................................................................................16
5.3 接口 ................................................................................................................................16
5.3.1 用户接口....................................................................................................................16
5.3.2 硬件接口....................................................................................................................16
5.3.3 软件接口....................................................................................................................17
5.4 控制...................................................................................................................................17
