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| Criterion |  Operations A3 Problem Solving |  Product Discovery Test Card |  Innovation Lean Startup |  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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | 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 | Medium | Medium |
Timedifferent | 45-90 min | 20-35 min | Wochen bis Monate je Lernzyklus | 60-90 min |
Participantsdifferent | 2-5 | 1-5 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Test Card with a pre-set threshold | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Prioritization Canvas, Hypothesis Backlog |
Tagsno overlap | LeanProblem solvingCoachingOperations | ExperimentsValidationDiscoveryHypothesis | LeanStartupValidationMVP | ExperimentsPrioritizationDiscoveryHypothesis |