基于ATIS-0800010《紧急警报服务提供规范》中给出的系统要求，本文件中的IPTV紧急警报系统元数据规范定义了用于向IPTV服务提供商的EAS接收系统（EIS）发送紧急警报信号和信息的XML模式，以及用于在用户端向IPTV终端功能发送警报信息和信令。此外，该文件还规定了用于认证EAS数据和音频文件的方法。

Building upon the system requirements given in ATIS-0800010, Emergency Alert Service Provisioning Specifications, the IPTV Emergency Alert System Metadata Specification in this document defines an XML schema used for delivery of emergency alert signaling and information to the IPTV service provider¿s EAS Ingestion System (EIS), and for delivery of alert information and signaling to the IPTV Terminal Function on the consumer premesis. In addition, the document specifies the methods used to authenticate EAS data and audio files.