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| Criterion |  Decision Making Assumption Surfacing |  Operations Barrier Analysis |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 45-90 min | 2-4 h | 30-60 min | 20-35 min |
Participantsdifferent | 2-8 | 2-6 | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | Root causeSafetyIncident | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |