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Safety I & Safety II

Tom Geraghty · Safety & Human Error, Models & Critique

Explains Hollnagel's Safety I (prevent failure) vs Safety II (ensure success) distinction, and why both are needed. Connects to WAI/WAD and Dekker and Allspaw's corrective: things go right for the same basic reasons things go wrong — through people adapting.

Connected concepts (20)

• Organizing for High Reliability: Processes of Collective Mindfulness (paper)
• Risk Management in a Dynamic Society: A Modelling Problem (paper)
• Working in Practice But Not in Theory: Theoretical Challenges of "High-Reliability Organizations" (paper)
• From Safety-I to Safety-II: A White Paper (paper)
• From Titanic to Costa Concordia — a Century of Lessons Not Learned (paper)
• Collective Mind in Organizations: Heedful Interrelating on Flight Decks (paper)
• HOP
• The Collapse of Sensemaking in Organizations: The Mann Gulch Disaster (paper)
• A Tale of Two Safeties (paper)
• Amagasaki Disaster
• Building and Revising Adaptive Capacity Sharing for Technical Incident Response: A Case of Resilience Engineering (paper)
• Civility Saves Lives
• Dr Richard Cook
• Normal Accidents
• PS in Aviation
• Resilience Engineering
• Resilience is a Verb (paper)
• Safety Work vs Safety of Work
• Swiss Cheese Model
• WAI vs WAD