本文件定义了一个声明性数据内容的创作标准，该内容主要与视频和/或音频服务相结合，并分发给具有数据功能的电视信号接收器。本标准中定义的数据本质可与声明性数据本质？内容1级规范[DDE-1]中定义的数据本质一起使用。根据本文规定的要点编写的应用程序将有可能直接或在转码后在目前部署的绝大多数交互式数字电视系统上执行。声明性内容通常是非过程性的，最常见的形式是HTML。但是，也定义了过程脚本。

This document defines a standard for the authoring of declarative data content intended to be combined primarily with video and/or audio services, and distributed to data-capable television signal receivers. The data essence defined in this standard may be used in conjunction with that defined in the Declarative Data Essence ¿ Content Level 1 specification [DDE-1]. It will be possible for applications authored according to the essence specified herein to execute on the vast majority of currently fielded interactive digital television systems, either directly or after being transcoded. Declarative content is generally nonprocedural, and most commonly in the form of HTML. However, procedural scripting is also defined.