Airbus is the leading aircraft manufacturer offering the most modern and efficient passenger aircraft family on the more than 100-seat market. A company that champions innovative technologies and offers some of the world’s most fuel efficient and quiet aircraft. Airbus has acquired significant expertise and is continuously carrying out research and technical activities, particularly in the field of advanced avionics systems and software. In the strongly competitive context of aeronautics, techniques, methods, and tools supporting the critical embedded systems and software development are considered as key enablers. Therefore Airbus is involved in different international initiatives such as Polarsys for the very long time support of open source solutions. The objective is to promote the emergence of innovative software architecture and techniques, new modelling approaches and integrated tools to support avionics system development.