ETSI TS 103 286-1的范围是描述本多部分后续部分使用的框架和体系结构 可交付成果，允许通过配套设备向全套DVB提供新的用户体验 服务。因此，本文档是从DVB服务的任何一种交付机制中抽象出来的。哪里 在适当的情况下，该多部分交付成果的后续部分将定义与给定交付机制的交互 用于DVB服务。本文件的目的是了解为支持这些新用户所采取的方法 经验和界面设计的环境。这代表了非规范背景 有助于理解本多部分交付成果后续部分的信息。因此，本文件描述了概念、功能角色、总体架构和主要接口 由支持这些新用户体验的多部分交付内容定义。本文件没有定义 这些接口，但以信息的方式描述了它们、它们之间的关系以及它们在整个体系结构中的作用。 有许多方面超出了这个多部分交付的范围。最具相关性的是:内容交付的机制，以及第三方配套屏幕应用程序提供商的角色。

The scope of ETSI TS 103 286-1 is to describe the framework and architecture used by subsequent parts of this multipart deliverable that allow for new user experiences through companion devices to be provided to the full set of DVB services. As such, the present document is abstracted from any one delivery mechanism for a DVB service. Where appropriate, subsequent parts of this multi-part deliverable will define the interaction with a given delivery mechanism for a DVB service.The purpose of the present document is to provide an understanding of the approach taken to support these new user experiences and the setting within which the interfaces have been designed. This represents non-normative background information which assists in the understanding of the subsequent parts of this multi-part deliverable.Therefore, the present document describes concepts, functional roles, overall architecture and the main interfaces defined by this multi-part deliverable that support these new user experiences. The present document does not define these interfaces, but informatively describes them, their relationship and their role in the overall architecture.There are various aspects that are out of scope of this multi-part deliverable. Of most relevance are:the mechanisms by which content is delivered, andthe role of a third-party companion screen application provider.