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| Criterion |  Operations After-Action Review |  Operations A3 Problem Solving |  Product Discovery Assumption Mapping |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 20-45 min | 45-90 min | 45-60 min | 25-40 min |
Participantsdifferent | 3-12 | 2-5 | 2-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | A3 Report, Action Plan, Root Cause Analysis | Assumption map, Test backlog, Risk ranking | Learning Card with evidence and next action |
Tagsno overlap | LearningOperationsImprovement | LeanProblem solvingCoachingOperations | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryLearning |