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| Criterion |  Operations Barrier Analysis |  Product Strategy Lean Canvas |  Operations Fault Tree Analysis |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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 an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 2-4 h | 45-90 min | 2-6 h | 45-60 min |
Participantsdifferent | 2-6 | 1-6 | 3-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Lean Canvas, Core Assumptions, Experiment Backlog | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Root causeSafetyIncident | StartupLeanAssumptionsBusiness model | RiskRoot causeSafety | AssumptionsRiskExperimentsValidation |