本标准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。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 standard 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. Declarative content is generally nonprocedural, and most commonly in the form of HTML. However, procedural scripting is also defined.