Generally, the Broadcast eXchange Format (BXF) defines the format and content of XML Messages for the interchange of data and metadata among professional systems, as follows: - 1. Broadcast schedules, including playout and record schedules - 2. As run information - 3. Content metadata, such as Content ID, Title, Duration, etc. - 4. Content management requests such as dub and purge requests - 5. Requests for transfer of content some of which will result in the transfer of Content essence between professional systems - 6. The addition of job management and automation of commercial copy transfer between systems - 7. The creation of profiles and the management of quality checking of media - 8. Ports as used by TCP/IP for the exchange of messages - 9. Library and Air Ready Master content representations of video, audio, captioning and other metadata structures. - The primary systems envisioned as users of this standard are: - Program Management Systems - Broadcast Traffic Systems - Master Control Automation Systems - Content Distribution Systems QC Systems - Mastering and Library Systems of Media Content - This particular document focuses on documentation of the BXF schemas.