ATSC Interactive Services Standard (ISS) TPT-related schema Version: 1.0 Date: 12/12/2013 Namespace: http://www.atsc.org/XMLSchemas/iss-tpt-1 Information about the use of this schema can be found in ATSC standard A/105-2013. This schema defines several XML elements: (1) An XML element named TPT that represents the TDO ParametersTable (2) An XML element named AMT that represents the Activation Messages Table (3) An XML element named UrlList that represents a list of URLs useful to receivers. TPT -- TDO Parameters Table -- contains properties of TDOs used in a segment, including properties of the events targeting the TDOs AMT -- Activation Messages Table element -- contains list of activation messages for a segment UrlList-- URL List element -- contains list of URLs of interest to receivers