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| Criterion |  Agile Ideal Days |  Product Discovery Test Card |  Product Discovery MVP Test Matrix |
|---|---|---|---|
Purposedifferent | When effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 15-60 min | 20-35 min | 45-75 min |
Participantsdifferent | 2-9 | 1-5 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Test Card with a pre-set threshold | Test Matrix, Test Plan |
Tagsno overlap | EstimationEffortAgile | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryOptions |
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