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| Criterion |  Operations A3 Problem Solving |  Product Discovery Product Kata |  Operations Kepner-Tregoe |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | 45-90 min | 1-2 Wochen je Loop | 2-8 h | 45-90 min |
Participantsdifferent | 2-5 | 3-10 | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Direction, Current metric, Target metric, Experiment note, Learning report | Problem Analysis, Decision Analysis, Risk Plan | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | LeanProblem solvingCoachingOperations | OutcomesDiscoveryLearningIterationCoaching | Problem solvingRoot causeDecisionOperations | AssumptionsRiskDecisionDiscovery |