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| Criterion |  Product Discovery Product Kata |  Operations A3 Problem Solving |  Architecture arc42 |
|---|---|---|---|
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 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-2 Wochen je Loop | 45-90 min | 1-2 Tage |
Participantsdifferent | 3-10 | 2-5 | 1-4 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Direction, Current metric, Target metric, Experiment note, Learning report | A3 Report, Action Plan, Root Cause Analysis | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | OutcomesDiscoveryLearningIterationCoaching | LeanProblem solvingCoachingOperations | ArchitectureDocumentationCommunication |
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