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| Criterion |  Agile Affinity Estimation |  Product Discovery MVP Test Matrix |  Product Discovery Test Card |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
Purposedifferent | 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 several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-90 min | 45-75 min | 20-35 min | 30-60 min |
Participantsdifferent | 3-12 | 2-8 | 1-5 | 1-5 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Test Matrix, Test Plan | Test Card with a pre-set threshold | Completed Experiment Canvas, Success Metric |
Tagsno overlap | EstimationBacklogRelative sizing | ExperimentsValidationDiscoveryOptions | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |