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| Criterion |  Product Discovery Product Kata |  Operations 5 Whys |  Operations A3 Problem Solving |
|---|---|---|---|
Purposedifferent | 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 single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-2 Wochen je Loop | 15-30 min | 45-90 min |
Participantsdifferent | 3-10 | 2-6 | 2-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Direction, Current metric, Target metric, Experiment note, Learning report | Root cause notes, Countermeasures | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | OutcomesDiscoveryLearningIterationCoaching | Root causeIncidentLeanProblem solving | LeanProblem solvingCoachingOperations |
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