ATSC Interactive Services Standard (ISS) CDM (Consumption Data Message) schema Version: 1.0 Date: 12/12/2013 Namespace: http://www.atsc.org/XMLSchemas/iss-cdm-1 Information about the use of this schema can be found in ATSC standard A/105-2013. This schema defines a "CDM" element that is used to deliver consumption data messages (service usage reports) to a remote serve. These reports include both linear TV usage and NRT data service usage.