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| Criterion |  Operations Fishbone Diagram |  Operations 8D Problem Solving |  Operations Scatter Diagram |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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. | 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. | When the question is whether two measures are related, the method makes patterns in the data picture visible. It separates felt correlations from relationships that actually show up in the data. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 30-60 min | 1-6 Wochen | 30-90 min | 2-8 h |
Participantsdifferent | 2-8 | 4-10 | 1-4 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Scatter Plot, Korrelationsnotiz, Hypothesenliste | Problem Analysis, Decision Analysis, Risk Plan |
Tags1 shared | Root causeQualityOperations | QualityProblem solvingRoot cause | Root causeQualityVisualization | Problem solvingRoot causeDecisionOperations |