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| Criterion |  Architecture Risk Storming |  Operations Barrier Analysis |  Product Discovery Assumption Mapping |  Operations Fault Tree Analysis |
|---|---|---|---|---|
Purposedifferent | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | Low | Medium | Medium | High |
Timedifferent | 60-90 min | 2-4 h | 45-60 min | 2-6 h |
Participantsdifferent | 4-12 | 2-6 | 2-8 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Annotated Diagram, Prioritized Risk List, Action Backlog | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Assumption map, Test backlog, Risk ranking | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | RiskArchitectureWorkshopValidation | Root causeSafetyIncident | AssumptionsRiskExperimentsValidation | RiskRoot causeSafety |