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| Criterion |  Operations Fault Tree Analysis |  Facilitation 1-2-4-All |  Operations MORT Analysis |
|---|---|---|---|
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. | When many people in a group too rarely get to speak, 1-2-4-All distributes thinking time more fairly. The format builds participation step by step and makes quiet or still-unformed thoughts usable faster. | 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. |
Complexitydifferent | High | Low | High |
Timedifferent | 2-6 h | 10-20 min | Mehrere Tage bis Wochen |
Participantsdifferent | 3-8 | 4-100+ | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Idea List, Shared Insights, Emergent Themes | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | RiskRoot causeSafety | FacilitationInclusionIdeation | Root causeSafetySystemicIncident |
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