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| Criterion |  Growth Funnel Analysis |  Agile Affinity Estimation |  Product Discovery Test Card |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
Purposedifferent | When many visitors or users drop off along the way, the reason behind the number often stays hidden. Funnel Analysis exposes these transitions and makes visible exactly where the path collapses. | 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. | 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 | 1-3 h | 30-90 min | 20-35 min | 30-60 min |
Participantsdifferent | 1-5 | 3-12 | 1-5 | 1-5 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Funnel report, Drop-off analysis, Optimization hypotheses | Affinity Size Map, Grouped Estimates, Unclear Items | Test Card with a pre-set threshold | Completed Experiment Canvas, Success Metric |
Tagsno overlap | AnalyticsConversionGrowth | EstimationBacklogRelative sizing | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |