本文件规定了物模型构成元素定义及逻辑关系，以及基础特征、服务和事件的描述。

This document mainly describes the test environment requirements, as well as interoperability test cases for rich and thin devices.

This document mainly describes the unified interconnection networking architecture and interface descriptions, as well as the local network configuration process, control, and management of devices.

This document mainly describes the definition and logical relationships of the constituent elements of the thing model, as well as the description of basic characteristics, services, and events.