Requirements of an Integrated Architecture

Abstract

Ultra-dependable systems are deployed in applications where the loss of the computer system results in catastrophic consequences. Examples of ultra-dependable systems are X-by-wire applications in the automotive or avionic domain, where a real-time computer system is designed to replace conventional mechanical or hydraulic components. New generations of civil airliners (Airbus A320, A330, A340, Boeing 777) exploit fly-by-wire control by the interposition of the flight control computer between the pilot’s commands and the control surface actuators [Collinson, 1999]. In the automotive industry, complete drive-by-wire systems without mechanical backup for braking, steering, and higher-level driver-assisting functions will replace the existing fail-safe systems in cars [Isermann et al., 2002].