本文件确定了参考体系结构内实体之间信息交换的技术要求。 以下网络中的信息交换要求在本文件范围内: -？连接用户实体和数字孪生实体的用户网络； -？连接数字孪生实体内子实体的服务网络； -？将设备通信实体连接到数字孪生实体和用户实体的接入网络； -？将设备通信实体连接到可观察制造元件的接近网络。

This document identifies technical requirements for information exchange between entities within the reference architecture. The requirements for information exchange in the following networks are within the scope of this document: —？user network that connects the user entity and the digital twin entity; —？service network that connects sub-entities within the digital twin entity; —？access network that connects the device communication entity to the digital twin entity and to the user entity; —？proximity network that connects the device communication entity to the observable manufacturing elements.