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| Criterion |  Product Discovery Test Card |  Agile Affinity Estimation |  Product Discovery Assumption Mapping |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 20-35 min | 30-90 min | 45-60 min | 45-90 min |
Participantsdifferent | 1-5 | 3-12 | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Test Card with a pre-set threshold | Affinity Size Map, Grouped Estimates, Unclear Items | Assumption map, Test backlog, Risk ranking | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | ExperimentsValidationDiscoveryHypothesis | EstimationBacklogRelative sizing | AssumptionsRiskExperimentsValidation | AssumptionsRiskDecisionDiscovery |