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| Criterion |  Operations A3 Problem Solving |  UX Research Affinity Diagramming |  Operations Fishbone Diagram |
|---|---|---|---|
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. | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 45-90 min | 45–90 min | 30-60 min |
Participantsdifferent | 2-5 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Theme clusters, Insight statements, Opportunity areas | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | LeanProblem solvingCoachingOperations | SynthesisQualitativeRoot cause | Root causeQualityOperations |
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