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| Criterion |  Operations A3 Problem Solving |  Product Discovery Test Card |  Growth A/B Testing |  Product Discovery Hypothesis Prioritization Canvas |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | 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. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 45-90 min | 20-35 min | 1-4 Wochen | 60-90 min |
Participantsdifferent | 2-5 | 1-5 | 1-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Test Card with a pre-set threshold | Experiment results, Decision log, Learning summary | Prioritization Canvas, Hypothesis Backlog |
Tagsno overlap | LeanProblem solvingCoachingOperations | ExperimentsValidationDiscoveryHypothesis | ExperimentsGrowthAnalyticsValidation | ExperimentsPrioritizationDiscoveryHypothesis |