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| Criterion |  Operations A3 Problem Solving |  Decision Making Assumption Surfacing |  Product Discovery Product Kata |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 45-90 min | 45-90 min | 1-2 Wochen je Loop | 45-60 min |
Participantsdifferent | 2-5 | 2-8 | 3-10 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Assumption List, Critical Assumptions, Learning Plan | Direction, Current metric, Target metric, Experiment note, Learning report | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | LeanProblem solvingCoachingOperations | AssumptionsRiskDecisionDiscovery | OutcomesDiscoveryLearningIterationCoaching | AssumptionsRiskExperimentsValidation |