ETSI TS 102 822-3-1是TV Anytime Forum制作的一系列技术规范之一。这些 文件确定了符合本规范的服务、系统和设备的基本规范 TV Anytime标准，其详细程度可用于兼容的产品和服务。作为此类标准化工作中的常见做法，这些规范之前有定义TV Anytime服务、系统和设备要求的要求文件。ETSI TS 102 822-1[4]和ETSI TS 102 822-2[5]设置了上下文和系统架构，其中元数据、内容引用、双向元数据和元数据保护标准将在 电视环境。 ETSI TS 102 822-1[4]提供了阶段1和阶段2基准业务模型，根据这些模型评估TV Anytime系统架构，以确保规范支持关键业务应用。ETSI TS 102 822-2[5]介绍了TV Anytime系统架构。这两份文件因其明显的介绍价值而被置于其他文件之前。请注意，前两个文档在很大程度上提供了信息，而 本系列的其余部分是规范性的。尽管本系列文件中的每一份都是独立的，但通过以数字顺序阅读所有规范文件，可以收集到TV Anytime系统标准的完整和连贯的含义。本文件涉及电视的元数据第1阶段功能- ETSI TS 102 822-1[4]中规定的任何时间规范。

ETSI TS 102 822-3-1 is one in a series of Technical Specifications produced by the TV-Anytime Forum. These documents establish the fundamental specifications for the services, systems and devices that will conform to the TV-Anytime standard, to a level of detail that is implementable for compliant products and services.As is common practice in such standardization efforts, these specifications were preceded by requirements documents which define the requirements for the TV-Anytime services, systems and devices.ETSI TS 102 822-1 [4] and ETSI TS 102 822-2 [5] set the context and system architecture in which the standards for Metadata, Content referencing, Bi-directional metadata and Metadata protection are to be implemented in the TV-Anytime environment. ETSI TS 102 822-1 [4] provides Phase 1 and Phase 2 benchmark business models against which the TV-Anytime system architecture is evaluated to ensure that the specification enable key business applications. ETSI TS 102 822-2 [5] presents the TV-Anytime System Architecture. These two documents are placed ahead of the others for their obvious introductory value. Note that these first two documents are largely informative, while the remainder of the series is normative.Although each in the series of documents is intended to stand alone, a complete and coherent sense of the TV-Anytime system standard can be gathered by reading all of the specification documents in numerical order.The present document deals with Metadata Phase 1 features of the TV-Anytime specification as identified in ETSI TS 102 822-1 [4].