Aviation
4 data model standards serving aviation. Every one confirmed against its steward's own site.
| Standard | Steward | Layer | Access | Modernity |
|---|---|---|---|---|
| AIXM (Aeronautical Information Exchange Model) | EUROCONTROL / FAA | Information Model | spec sold | 30.7 Legacy |
| ATA Spec 2000 / iSpec 2200 | Airlines for America (A4A) | Exchange Schema | spec sold | — |
| FIXM (Flight Information Exchange Model) | FIXM Change Control Board / ICAO | Information Model | spec sold | 32.1 Legacy |
| IWXXM (ICAO Meteorological Information Exchange Model) | WMO / ICAO | Information Model | spec sold | — |