本文档详细描述组成系统的各个软件组成部分，包括每个软件模块（或类）的属性、方法、事件，各软件模块的外部接口说明，测试要点等内容。

本文档由项目组维护，供项目组使用-This document describes in detail the various components of the system software components, Each module includes software (or) the properties, methods, events, the software module external interface that such as test points. This document from the project team maintenance, and for the project team to use