This standard includes an analysis of business requirements and advertisement context along with UML diagrams and Use Case descriptions to lay the groundwork for the development of protocol-specific solutions to an Ad space ordering interface between an Ad Provider and IPTV Service Provider. Purpose The purpose of this ATIS standard is to enumerate business process flows and technical interface requirements between two supplier partners@ one of which is providing advertisement content to be placed within or in association with an IPTV service and another that is providing the overall IPTV service to consumers. It is an example of interactions between a primary Content Delivery Network (CDN) provider@ the Ad Provider@ and a secondary CDN provider@ the IPTV Service Provider. Please see references [25] and [26] for further information on this context.