第 1 页 共 2 3 页 【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 ...................................................................................................................... 1 9 3 .2 .1 精度 .................................................................................................
