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| Criterion |  Operations Fault Tree Analysis |  Operations Barrier Analysis |  Innovation Design Sprint |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 2-6 h | 2-4 h | 4-5 Tage | 45-60 min |
Participantsdifferent | 3-8 | 2-6 | 5-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Prototype, Test Findings, Decision Rationale | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskRoot causeSafety | Root causeSafetyIncident | Design sprintPrototypeValidationInnovation | AssumptionsRiskExperimentsValidation |