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| Criterion |  Agile Three Amigos |  UX Research Affinity Diagramming |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | When story, test, and implementation could drift apart, it brings business perspective, engineering, and quality together early. It prevents a story from being read differently only late in the process. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | Low | High |
Timedifferent | 15-30 min | 45–90 min | 1-6 Wochen |
Participantsdifferent | 3 | 3-10 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Clarified Story, Test Examples, Open Questions | Theme clusters, Insight statements, Opportunity areas | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | CollaborationBehavior-Driven DevelopmentQualityRefinement | SynthesisQualitativeRoot cause | QualityProblem solvingRoot cause |
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