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| Criterion |  Decision Making Assumption Surfacing |  Engineering Hypothesis-Driven Troubleshooting |  Product Discovery Test Card |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 45-90 min | 30-240 min | 20-35 min | 45-60 min |
Participantsdifferent | 2-8 | 1-6 | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Test Card with a pre-set threshold | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | TroubleshootingProblem solvingDiagnosis | ExperimentsValidationDiscoveryHypothesis | AssumptionsRiskExperimentsValidation |