FIXM (Flight Information Exchange Model)
Information Model
Aviation
specification sold
Flight Information Exchange Model (FIXM) is a data standard containing internationally harmonized flight and flow information items that satisfy, and are traceable to, ICAO requirements for flight information exchanges....
Also in the API standards catalog
This standard shows up on both sides of the house — as a data model here, and as a standard applied in API operations. Same standard, two lenses.
See it as an API standard →