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| Criterion |  Operations Scatter Diagram |  Operations Failure Mode and Effects Analysis |  Operations Ivy Lee Method |  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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | 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 | 5-10 min daily | 30-60 min |
Participantsdifferent | 1-4 | 3-10 | 1 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | FMEA Table, Risk Priority, Mitigation Actions | Daily Priority List, Completion Notes | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | Root causeQualityVisualization | RiskQualityOperationsRoot cause | PrioritizationProductivityExecution | Root causeQualityOperations |