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| Criterion |  Operations Fault Tree Analysis |  Operations Barrier Analysis |  Innovation Brainwriting |
|---|---|---|---|
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 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. | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 2-6 h | 2-4 h | 15-30 min |
Participantsdifferent | 3-8 | 2-6 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Idea sheets, Expanded concepts, Prioritized list |
Tagsno overlap | RiskRoot causeSafety | Root causeSafetyIncident | BrainstormingCollaborationInclusionIdeas |
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