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| Criterion |  Operations 8D Problem Solving |  Product Discovery Pretotyping |  Product Discovery Experiment Canvas |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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. | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | High | Low | Low | Low |
Timedifferent | 1-6 Wochen | Stunden bis wenige Tage | 30-60 min | 25-40 min |
Participantsdifferent | 4-10 | 1-4 | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Completed Experiment Canvas, Success Metric | Learning Card with evidence and next action |
Tagsno overlap | QualityProblem solvingRoot cause | ValidationDemandMVP | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryLearning |