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| Criterion | ![]() Growth Pirate Metrics AARRR | ![]() UX Research Diary Study | ![]() Product Discovery Test Card | ![]() Product Discovery Experiment Canvas |
|---|---|---|---|---|
Purposedifferent | For products with complex usage paths, overall growth alone is too coarse to reveal bottlenecks. Pirate Metrics breaks the relationship with the product into consecutive stages and shows where the funnel actually leaks. | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | 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 | 1-2 h Setup, laufend | 1-4 Wochen | 20-35 min | 30-60 min |
Participantsdifferent | 2-8 | 5-20 | 1-5 | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | AARRR funnel, Metric baseline, Experiment backlog | Diary Entries, Longitudinal Patterns, Experience Timeline | Test Card with a pre-set threshold | Completed Experiment Canvas, Success Metric |
Tagsno overlap | GrowthMetricsExperiments | UX researchTrackingBehavior | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |



