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| Criterion |  Growth Flywheel |  Product Discovery Riskiest Assumption Test |  Product Discovery Test Card |  Growth A/B Testing |
|---|---|---|---|---|
Purposedifferent | Growth often breaks down where a reinforcing mechanism builds up too much friction. A Flywheel shows the cycle of value, repetition, and reinforcement meant to sustain growth. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 60-120 min | 1-2 Wochen pro Iteration | 20-35 min | 1-4 Wochen |
Participantsdifferent | 3-8 | 2-6 | 1-5 | 1-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Flywheel Map, Friction Points, Growth Levers, Experiment Backlog | Prioritized Assumption List, Test Plan, Results Report | Test Card with a pre-set threshold | Experiment results, Decision log, Learning summary |
Tagsno overlap | GrowthRetentionConversion | ExperimentsValidationDiscoveryAssumptions | ExperimentsValidationDiscoveryHypothesis | ExperimentsGrowthAnalyticsValidation |