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| Criterion |  Operations A3 Problem Solving |  Innovation Lean Startup |  Product Discovery Learning Card |  Product Discovery Product Kata |
|---|---|---|---|---|
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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | Product Kata helps clarify customer problems, solution ideas, and evidence through a repeatable improvement routine. It captures direction, current metric, target metric, experiment notes, and learning. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 45-90 min | Wochen bis Monate je Lernzyklus | 25-40 min | 1-2 Wochen je Loop |
Participantsdifferent | 2-5 | 2-8 | 1-5 | 3-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Learning Card with evidence and next action | Direction, Current metric, Target metric, Experiment note, Learning report |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanStartupValidationMVP | ExperimentsValidationDiscoveryLearning | OutcomesDiscoveryLearningIterationCoaching |