The Flight Information Exchange Model (FIXM) is a global exchange standard capturing flight and flow information
![](/images/Applications.jpg)
FIXM Applications
Contain metadata about the message exchange in addition to guidance for constructing messages, such as XML templates.
Sits as a layer above Core.
![](/images/FIXM-Core.jpg)
FIXM Core
Contains basic flight data that are globally applicable and which are endorsed by the FIXM CCB.
![](/images/FIXM-Extensions.jpg)
FIXM Extensions
Support localized requirements from particular communities of interest.
Extends basic flight data and/or applications.