目录1 引言 ............................................................................................................................................... 3 1.1 编写目的 ........................................................................................................................... 3 1.2 背景 ................................................................................................................................... 3 1.3 定义 ................................................................................................................................... 3 1.4 参考资料 ........................................................................................................................... 3 2 任务概述 ....................................................................................................................................... 3 2.1 目标 ...................................................................................................................................32.2 用户的特点 .......................................................................................................................42.3 假定和约束 ....................................................................................................................... 53 需求规格 ....................................................................................................................................... 6 3.1 对功能的规定 ................................................................................................................... 6 3.2 对性能的规定 ...................................................................................................................63.2..1 精度...........................................................................................................................63.2.2 时间特性要求 .......................................................................................................
