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| Criterion |  Innovation Lean Startup |  Operations A3 Problem Solving |  Product Discovery Test Card |
|---|---|---|---|
Purposedifferent | 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. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 45-90 min | 20-35 min |
Participantsdifferent | 2-8 | 2-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | A3 Report, Action Plan, Root Cause Analysis | Test Card with a pre-set threshold |
Tagsno overlap | LeanStartupValidationMVP | LeanProblem solvingCoachingOperations | ExperimentsValidationDiscoveryHypothesis |
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