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| Criterion |  UX Research Affinity Diagramming |  Decision Making Decision Matrix |  Operations A3 Problem Solving |
|---|---|---|---|
Purposedifferent | 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 several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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 | Low | Medium | Medium |
Timedifferent | 45–90 min | 45-90 min | 45-90 min |
Participantsdifferent | 3-10 | 2-8 | 2-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | Decision Matrix, Scoring Rationale, Selected Option | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | SynthesisQualitativeRoot cause | DecisionCriteriaScoringTradeoffs | LeanProblem solvingCoachingOperations |
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