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| Criterion |  Operations Fault Tree Analysis |  Decision Making Assumption Surfacing |  Operations MORT Analysis |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Low | High | Medium |
Timedifferent | 2-6 h | 45-90 min | Mehrere Tage bis Wochen | 45-60 min |
Participantsdifferent | 3-8 | 2-8 | 2-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Assumption List, Critical Assumptions, Learning Plan | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskRoot causeSafety | AssumptionsRiskDecisionDiscovery | Root causeSafetySystemicIncident | AssumptionsRiskExperimentsValidation |