Building the Information Society

Volume 156 of the series IFIP International Federation for Information Processing pp 191-212

Airbus Fly-By-Wire: A Total Approach To Dependability

  • Pascal TraverseAffiliated withAirbus
  • , Isabelle LacazeAffiliated withAirbus
  • , Jean SouyrisAffiliated withAirbus


This paper deals with the digital electrical flight control system of the Airbus airplanes. This system is built to very stringent dependability requirements both in terms of safety (the systems must not output erroneous signals) and availability. System safety and availability principles are presented with an emphasis on their evolution and on future challenges

Key words

dependability fault-tolerance safety proof human factors system design airplane fly-by-wire flight controls