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| Criterion |  Innovation Lean Startup |  Operations 8D Problem Solving |  Product Discovery Test Card |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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 | High | Low | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 1-6 Wochen | 20-35 min | 30-60 min |
Participantsdifferent | 2-8 | 4-10 | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Test Card with a pre-set threshold | Completed Experiment Canvas, Success Metric |
Tagsno overlap | LeanStartupValidationMVP | QualityProblem solvingRoot cause | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |