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| Criterion |  Operations A3 Problem Solving |  UX Design Lean UX Canvas |  Product Discovery Learning Card |  Product Discovery Test 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. | The Lean UX Canvas helps clarify user behavior, touchpoints, and concept decisions. It makes assumptions and desired outcomes visible and captures the result as a completed canvas, hypothesis list, and first experiment. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 45-90 min | 2-3 h | 25-40 min | 20-35 min |
Participantsdifferent | 2-5 | 3-8 | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Completed Lean UX Canvas, Hypothesis list, First experiment | Learning Card with evidence and next action | Test Card with a pre-set threshold |
Tagsno overlap | LeanProblem solvingCoachingOperations | CanvasHypothesisOutcomesDiscovery | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryHypothesis |