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1．引言............................................................................................................................................1 1.1 编写目的.............................................................................................................................1 1.2 项目背景.............................................................................................................................2 1.3 定义....................................................................................................................................2 1.4 参考资料.............................................................................................................................2 2．任务概述....................................................................................................................................2 2.1 目标....................................................................................................................................2 2.2 运行环境.............................................................................................................................2 2.3 条件与限制.........................................................................................................................2 3．数据描述....................................................................................................................................3 3.1 静态数据.............................................................................................................................3 3.2 动态数据.............................................................................................................................3 3.3 数据库介绍.........................................................................................................................3 3.4 数据词典.............................................................................................................................3 3.5 数据采集.............................................................................................................................3 4．功能需求....................................................................................................................................3 4.1 功能划分.............................................................................................................................3 4.2 功能描述.............................................................................................................................3 5．性能需求....................................................................................................................................3 5.1 数据精确度.........................................................................................................................3 5.2 时间特性.............................................................................................................................3 5.3 适应性................................................................................................................................4 6．运行需求....................................................................................................................................4 6.1 用户界面.............................................................................................................................4 6.2 硬件接口.............................................................................................................................4 6.3 软件接口.............................................................................................................................4 6.4 故障处理.............................................................................................................................4 7．其它需求....................................................................................................................................4