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| Criterion |  Operations Fault Tree Analysis |  Facilitation Alignment Mapping |  Facilitation 3-Circle Venn Diagram |  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. | When several people work toward one goal but hold different mental maps, Alignment Mapping makes the discrepancies visible. It arranges goals, assumptions, and priorities so shared direction becomes verifiable. | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. | 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 | Medium | Low | Medium |
Timedifferent | 2-6 h | 1-2 h | 15-45 min | 2-4 h |
Participantsdifferent | 3-8 | 4-12 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Alignment Map, Open Issues, Decision Questions | Venn Diagram, Overlap Notes, Differentiators | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | RiskRoot causeSafety | AlignmentStakeholdersStrategyFacilitation | ComparisonFacilitationAlignment | Root causeSafetyIncident |