Aeronautical Information Management (AIM) System is a portal that allows pilots, airline operators and other Aeronautical Information Services (AIS) users to access the latest flight information as well as submit e-flight plans.
ATS Message Handling System (AMHS) also known as Aeronautical Message Handling System is a standard for aeronautical ground-ground communications
The Aeronautical Fixed Telecommunication Network (AFTN) is a worldwide system of aeronautical fixed circuits provided, as part of the Aeronautical Fixed Service, for the exchange of messages and/or digital data between aeronautical fixed stations having the same or compatible communications characteristics.