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| Criterion |  Operations Scatter Diagram |  Operations Failure Mode and Effects Analysis |  Operations 5 Whys |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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 | Low | High | Low | Low |
Timedifferent | 30-90 min | 2-6 h | 15-30 min | 30-60 min |
Participantsdifferent | 1-4 | 3-10 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | FMEA Table, Risk Priority, Mitigation Actions | Root cause notes, Countermeasures | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tags1 shared | Root causeQualityVisualization | RiskQualityOperationsRoot cause | Root causeIncidentLeanProblem solving | Root causeQualityOperations |