FIXM Strategy and Charter

FIXM Change Management Charter

  version 1.2   (20-Apr-2018)


FIXM Change Management Charter.pdf
The FIXM Change Management Charter outlines the formal change management processes required to ensure that the content and design of FIXM is unambiguously understood and endorsed by the FIXM stakeholders. This charter formalizes the FIXM governance and its operating procedures.


FIXM Strategy

  version 1.1   (06-Feb-2017)


FIXM Strategy.pdf
The FIXM Strategy outlines the strategic objectives for FIXM in order to guide the overall FIXM development.


FIXM Release Plan

  version 1.1   (26-Apr-2018)


FIXM Release Plan v1.1.pdf
The FIXM Release Plan describes the FIXM CCB roadmap for the FIXM core releases and for the verified extensions to FIXM.


FIXM Implementation Guidance

FIXM Implementation Guidance Package

  version 4.1.0   (30-Mar-2018)


FIXM Implementation Guidance_FIXM
This package provides guidance and clarifications for the implementation of FIXM. It includes general guidance for the implementation of FIXM (high-level considerations about the usage of FIXM, general encoding rules, etc.) and more specific FIXM guidance and examples in support of FF-ICE/1 and of the transition to FF-ICE/1.

This package is managed by the FIXM CCB and it is released as a recommended practice for FIXM. It is therefore non-normative. Requirements described in it shall be considered mandatory only for those aiming to comply with this guidance.

Package Contents:

  • FIXM Implementation Guidance document
  • FIXM XML Sample Data. The contents are described in Chapter 5 of the FIXM Implementation Guidance document.

IMPORTANT NOTE: This document is considered a work-in-progress as the FIXM and FF-ICE concepts are refined. The FIXM CCB welcomes opinions, change proposals, or any additional materials that can help improve the FIXM guidance for implementers. The FIXM CCB can be reached at


FIXM Development Guidelines

FIXM Development Guidelines

  version 2.0   (31-Oct-2016)


FIXM Development Guidelines_v2.pdf


Archived Documents

Globally Unique Flight Identifier (GUFI) Format and Content

  version 2.1   (23-Jun-2014)


GUFI Format v2 1_Final.pdf
A collaborative effort to establish the Flight Information Exchange Model (FIXM) has been underway for several years. A key component of the flight model is a Globally Unique Flight Identifier (GUFI) that is included on every Air Traffic Management (ATM) flight data transaction to unambiguously identify the flight to which the data applies. The purpose of the GUFI is to eliminate problems that have occurred in the past when systems try to accurately correlate data that is received from many other systems. This paper discusses the format and content of the GUFI.NOTE: The GUFI format described in this document should be considered stable for all FIXM versions 3.0 and above.


Globally Unique Flight Identifier (GUFI) Requirements

  version 2.1   (23-June-2014)


GUFI Requirements v2 1_Final.pdf
The Flight Information Exchange Model (FIXM) contains the data element GUFI. The purpose of the GUFI is to have an identifier that allows any Air Traffic Management (ATM) flight data to be easily and accurately correlated with any other ATM flight data. Using the GUFI, all systems can be sure they are referring to the same flight when exchanging data about that flight. This paper presents background information on general issues regarding unique flight identification, such as defining what is a flight, and proposes a set of GUFI requirements that can serve as input to the collaborative process defining an internationally accepted GUFI.

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