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| Criterion |  Operations A3 Problem Solving |  Product Discovery MVP Test Matrix |  Product Discovery Experiment Canvas |  Product Discovery Learning Card |
|---|---|---|---|---|
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. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | 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 | Medium | Medium | Low | Low |
Timedifferent | 45-90 min | 45-75 min | 30-60 min | 25-40 min |
Participantsdifferent | 2-5 | 2-8 | 1-5 | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Test Matrix, Test Plan | Completed Experiment Canvas, Success Metric | Learning Card with evidence and next action |
Tagsno overlap | LeanProblem solvingCoachingOperations | ExperimentsValidationDiscoveryOptions | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryLearning |