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| Criterion |  Operations Fishbone Diagram |  UX Research Affinity Diagramming |  Operations Root Cause Analysis |
|---|---|---|---|
Purposedifferent | 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 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 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 | 30-60 min | 45–90 min | 1-4 h |
Participantsdifferent | 2-8 | 3-10 | 3-8 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Theme clusters, Insight statements, Opportunity areas | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tags1 shared | Root causeQualityOperations | SynthesisQualitativeRoot cause | Root causeProblem solvingQualityIncident |
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