目 录1引言...................................................................................................................................................................61 。 1 文档编制目的 ............................................................................................................................................ 4 1.2 背景 ........................................................................................................................................................... 4 1 。 3 参考资料 .................................................................................................................................................. 4 2 软件概述 ........................................................................................................................................................... 4 2.1 软件范围定义 ........................................................................................................................................... 4 2.2 系统特性概述 ........................................................................................................................................... 4 2.3 系统运行环境 ........................................................................................................................................... 5 2.3 。 1 设备及分布 ........................................................................................................................................ 5 2.3.2 支撑软件 ............................................................................................................................................ 5 2 。 4 假定和依赖 ............................................................................................................................................... 6 3 外部接口需求 ..........................................................................................................................................