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【二手商品交易系统】
需求规格说明书
1 引言 ………………………………………………………………………………………… ...2
1.1 编写目的 ................................................................................................................................ 2
1.2 项目背景 ................................................................................................................................ 2
1.3 定义 ........................................................................................................................................ 2
1.4 读者对象 ................................................................................................................................ 2
1.4 参考资料 ................................................................................................................................ 2
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 ...................................................................................................................... 19
3.2.1
精度
............................................................................................................................... 19
3.2.2 时间特性要求 ............................................................................................................... 19
3.2.3
灵活性
........................................................................................................................... 19
3.3 输人输出要求 ...................................................................................................................... 20
3.4 数据管理能力要求 .............................................................................................................. 21
3.5 故障处理要求 ...................................................................................................................... 21
3.6 其他专门要求 ...................................................................................................................... 22
4 运行环境规定 ............................................................................................................................. 22
4.1 设备 ...................................................................................................................................... 22
4.2 支持软件 .............................................................................................................................. 22
4.3 接口 ...................................................................................................................................... 23