Aeronautical Operational Control (AOC) A group or the entirety of applications used for communication of an aircraft with its airline or service partner pendants on the ground. An AOC application was traditionally hosted on an ACARS MU or CMU, but it can also be hosted on an Electronic flight bag (EFB) platform. This article needs to be cleaned up to conform to a higher standard of quality. ... CMU is an acronym for three different universities: Carnegie Mellon University in Pittsburgh, Pennsylvania Central Michigan University in Mount Pleasant, Michigan Chiang Mai University in Chiangmai, Thailand Central Michigan University claims CMU as a trademark: [1]. A search through the United States Patent and Trademark Offices trademark database will... Electronic Flight Bag (EFB) is a general purpose computing platform intended to reduce, or replace, paper-based reference material often found in the Pilots carry-on Flight Bag (e. ...

Traditionally, AOC messages have been user defined, because they have only been exchanged between an airline and their own aircraft. Thus, controlling both ends, there was no need for standardization.

However, by introducing airframer defined ACARS messages (e.g. by the A380) and because of the increasing need to connect airline handling partners like fuel suppliers or de-icing companies, a need to standardize appeared. With ARINC project 633, there is an initiative to standardize these messages.