72ad415f___MPEG_21_Multimedia_Framework__Description
[Part#] 15-ER [Description] 
Event Reporting, specifies: How to express Event Report Requests (ER-R) that contain information about which events to report, what information is to be reported and to whom; How to express Event Reports (ER) which are created by an MPEG-21 Peer in response to an Event Report Request when the condition of the ER-R is met; and How to use Digital Items – as specified in part 2 of MPEG-21 – to package Event Reports and Event Report Request.
Information Technology — MPEG-21 Multimedia Framework
Description