目录
1 引言..................................................................................................................................................3
1.1 编写目的.................................................................................................................................3
1.2 背景.........................................................................................................................................3
1.3 参考资料.................................................................................................................................3
2 任务概述..........................................................................................................................................4
2.1 目标.........................................................................................................................................4
2.2 用户的特点.............................................................................................................................4
2.3 约束条件.................................................................................................................................4
3 需求规定..........................................................................................................................................5
3.1 对功能的规定.........................................................................................................................5
3.2 数据流程图.............................................................................................................................7
3.3 系统功能图.............................................................................................................................8
3.4 功能列表.................................................................................................................................8
3.5 对性能的规定.........................................................................................................................9
对计算机性能的要求,最低也应该是在 WINDOWS 98 以上.....................................................9
3.5.1
精度
.................................................................................................................................. ..9
3.5.2
时间特性要求
............................................................................................................. .......9
3.5.3
灵活性
........................................................................................................................ ......10
3.6 输人输出要求.......................................................................................................................10
3.7 数据管理能力要求...............................................................................................................12
3.8 故障处理要求.......................................................................................................................13
4 运行环境规定................................................................................................................................13
4.1 硬件平台...............................................................................................................................13
4.2 支持软件...............................................................................................................................13
4.3 接口.......................................................................................................................................13