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| Criterion |  Operations MORT Analysis |  Decision Making Assumption Surfacing |  Product Strategy DIBB |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | 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 | High | Low | Low | Low |
Timedifferent | Mehrere Tage bis Wochen | 45-90 min | 1-2 h | 15-30 min |
Participantsdifferent | 2-6 | 2-8 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Assumption List, Critical Assumptions, Learning Plan | DIBB document, Belief list, Bet list, Learning report | Root cause notes, Countermeasures |
Tagsno overlap | Root causeSafetySystemicIncident | AssumptionsRiskDecisionDiscovery | StrategyDecisionAssumptionsHypothesis | Root causeIncidentLeanProblem solving |