AIRM and Information Exchange Models

AIRM is not an Information Exchange Model

The AIRM is not an information exchange model – it says nothing about how to encode information. This need is met by community driven information exchange models that are geared to support the implementation of solutions, possibly including specific technology choices, for that community.

However, to facilitate semantic interoperability, the definitions used in information exchange models and in the AIRM are aligned.

The following sections give basic information on key information exchange models used in ATM.


The Flight Information Exchange Model (FIXM) is an exchange model capturing Flight and Flow information that is globally standardised.


The Aeronautical Information Exchange Model (AIXM) is an exchange model capturing Aeronautical information. Its objective is to enable the provision in digital format of the aeronautical information that is in the scope of Aeronautical Information Services (AIS).


The ICAO Meteorological Information Exchange Model (IWXXM) is an exchange model capturing Meteorological information. It was introduced to support the exchange of meteorological information in accordance with ICAO Annex 3.

IWXXM website


The Aerodrome Mapping Exchange Model (AMXM) is an open technical resource owned by EUROCAE / RTCA. The AMXM is provided in support of Aerodrome Mapping Database (AMDB) data exchange. 

AMXM website

Related Documentation

What is the AIRM?

A page to answer the big question.

Using the AIRM

Find out the best way to use the AIRM


What is SWIM and what is AIRM's role?

Request a Change in the AIRM

There are many ways to submit a change request. 

AIRM License

Can I reuse the AIRM? What are the conditions?

Semantic Interoperability

What is it and why the AIRM is the cornerstone?