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| Criterion |  Operations Fault Tree Analysis |  Operations MORT Analysis |  Innovation Brainstorming |  Operations Barrier 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. | 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 a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 2-6 h | Mehrere Tage bis Wochen | 30-60 min | 2-4 h |
Participantsdifferent | 3-8 | 2-6 | 4-12 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Idea pool, Theme clusters, Shortlist | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | RiskRoot causeSafety | Root causeSafetySystemicIncident | BrainstormingIdeationCreativityWorkshopDivergence | Root causeSafetyIncident |