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| Criterion |  Operations A3 Problem Solving |  Operations After-Action Review |  Product Discovery Smoke Test |  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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 45-90 min | 20-45 min | 1-5 Tage | 25-40 min |
Participantsdifferent | 2-5 | 3-12 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Lessons learned, Action items, Event summary | Interest Metrics, Conversion Signal, Learning Note | Learning Card with evidence and next action |
Tagsno overlap | LeanProblem solvingCoachingOperations | LearningOperationsImprovement | ValidationExperimentsDemandGrowth | ExperimentsValidationDiscoveryLearning |