1 引言..................................................................................................................................................2
1.1 编写目的.................................................................................................................................2
1.2 背景.........................................................................................................................................2
1.3 定义.........................................................................................................................................3
2 任务概述..........................................................................................................................................3
2.1 目标.........................................................................................................................................3
2.2 用户的特点.............................................................................................................................3
2.3 假定和约束.............................................................................................................................3
3 需求规定..........................................................................................................................................4
3.1 对功能的规定.........................................................................................................................4
3.2 对性能的规定.......................................................................................................................27
3.2.1
精度
............................................................................................................................ ......27
3.2.2
时间特性要求
..................................................................................................................27
3.2.3
灵活性
........................................................................................................................ ......28
3.3 输人输出要求.......................................................................................................................28
3.4 数据管理能力要求...............................................................................................................28
3.5 故障处理要求.......................................................................................................................28
3.6 其他专门要求.......................................................................................................................28
4 运行环境规定................................................................................................................................29
4.1 设备.......................................................................................................................................29
4.2 软件.......................................................................................................................................29
4.3 接口.......................................................................................................................................29
4.4 控制.......................................................................................................................................29