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| Criterion |  Operations Kepner-Tregoe |  Operations Scatter Diagram |  Operations Failure Mode and Effects Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | 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. | 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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 | High | Low | High | Low |
Timedifferent | 2-8 h | 30-90 min | 2-6 h | 30-60 min |
Participantsdifferent | 2-8 | 1-4 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Analysis, Decision Analysis, Risk Plan | Scatter Plot, Korrelationsnotiz, Hypothesenliste | FMEA Table, Risk Priority, Mitigation Actions | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tags1 shared | Problem solvingRoot causeDecisionOperations | Root causeQualityVisualization | RiskQualityOperationsRoot cause | Root causeQualityOperations |