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| Criterion |  Operations Accountability Ladder |  Operations Fault Tree Analysis |  Operations Root Cause Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | With defensive reactions to problems, the method shifts the view from justification to ownership. It makes visible which reaction stage a person or team is currently stuck on. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Low | High | Medium | Low |
Timedifferent | 20-45 min | 2-6 h | 1-4 h | 15-30 min |
Participantsdifferent | 1-8 | 3-8 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Ownership Reflection, Action Commitment, Coaching Notes | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Root cause notes, Countermeasures |
Tagsno overlap | ResponsibilityLeadershipTeam | RiskRoot causeSafety | Root causeProblem solvingQualityIncident | Root causeIncidentLeanProblem solving |