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Airbus A340 vs. Boeing 777 Avionics Approaches

publish date: 2026/10/04 04:25:24.863598 UTC

In safety-critical avionics, engineers use different design philosophies to achieve system dependability. Based on industry approaches to flight control systems, how does the Boeing 777 design philosophy differ from the Airbus A340 approach?

The Boeing 777 uses diverse software across single hardware, while Airbus uses redundant hardware only.

Both aircraft use identical diverse software, but Boeing runs it on non-redundant servers.

The Boeing 777 completely avoids hardware redundancy, whereas Airbus relies purely on static analysis tools.

The Boeing 777 focuses on software simplicity and extensive validation across redundant hardware, whereas Airbus uses both diverse hardware and diverse software.

Reference

Software Engineering, Ian Sommerville, 9th edition

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Redundancy and Diversity

Airbus A340 vs. Boeing 777 Avionics Approaches

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