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1 引言..................................................................................................................................... .............1
1.1 编写目的.................................................................................................................................1
1.2 背景.........................................................................................................................................1
1.3 参考资料.................................................................................................................................2
2 任务概述...................................................................................................................................... ....2
2.1 目标.........................................................................................................................................2
2.2 用户的特点.............................................................................................................................3
2.3 假定和约束.............................................................................................................................4
3 需求规定...................................................................................................................................... ....4
3.1 对功能的规定.........................................................................................................................4
3.2 对性能的规定.........................................................................................................................6
3.2.1
精度
.................................................................................................................................. ..6
3.2.2
时间特性要求
............................................................................................................. .......7
3.2.3
灵活性
.............................................................................................................................. ..8
3.3 输人输出要求.........................................................................................................................8
3.4 数据管理能力要求.................................................................................................................9
3.5 故障处理要求.........................................................................................................................9
3.6 其他专门要求.......................................................................................................................10
4 运行环境规定.................................................................................................................. ..............10
4.1 设备.......................................................................................................................................10
4.2 支持软件...............................................................................................................................11
4.3 接口.......................................................................................................................................12
4.4 控制.......................................................................................................................................12
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