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| Criterion |  UX Research Affinity Diagramming |  Operations Fishbone Diagram |  Operations Root Cause Analysis |
|---|---|---|---|
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 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 45–90 min | 30-60 min | 1-4 h |
Participantsdifferent | 3-10 | 2-8 | 3-8 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | Fishbone Diagram, Cause Categories, Investigation Backlog | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tags1 shared | SynthesisQualitativeRoot cause | Root causeQualityOperations | Root causeProblem solvingQualityIncident |
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