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| Criterion |  Facilitation Dot Estimation |  Product Discovery Hypothesis Prioritization Canvas |  Agile Ideal Days |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. | When many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 5-20 min | 60-90 min | 15-60 min | 20-35 min |
Participantsdifferent | 3-20 | 3-8 | 2-9 | 1-5 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Effort Heatmap, Risk Signals, Discussion Targets | Prioritization Canvas, Hypothesis Backlog | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Test Card with a pre-set threshold |
Tagsno overlap | EstimationEffortRisk | ExperimentsPrioritizationDiscoveryHypothesis | EstimationEffortAgile | ExperimentsValidationDiscoveryHypothesis |