Causality Quote by Nancy G. Leveson
““The most common accident causality models assume that accidents are caused by component failure and that making system components highly reliable or planning for their failure will prevent accidents. While this assumption is true in the relatively simple electromechanical systems of the past, it is no longer true for the types of complex sociotechnical systems we are building today.””
About This Quote
Source Speech: Safety Engineering Talk, 2020
Traditional accident models focus on component failure, but modern complex systems require broader safety thinking beyond reliability.
In simple terms: Old models look at parts; new systems need wider safety views.
Key Takeaway
Adopt systemic safety approaches.
Themes
safety
systems
complexity
Mood
analytical
critical
Type
explanatory
thought‑provoking
When to use this quote
- engineering conferences
- risk assessments
- regulatory training
Key Concepts
risk management
system design
policy making
Questions to Reflect On
- How can we integrate human behavior into safety models?
- What new metrics capture systemic risk?
A Different Perspective
Complex systems may have unpredictable human factors.
