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| Criterion |  Product Discovery Pretotyping |  Operations Fault Tree Analysis |  Product Discovery Smoke Test |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | 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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | 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 | Low | High | Low | Medium |
Timedifferent | Stunden bis wenige Tage | 2-6 h | 1-5 Tage | 2-4 h |
Participantsdifferent | 1-4 | 3-8 | Nutzertraffic | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Interest Metrics, Conversion Signal, Learning Note | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | ValidationDemandMVP | RiskRoot causeSafety | ValidationExperimentsDemandGrowth | Root causeSafetyIncident |