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| Criterion |  Operations Fishbone Diagram |  Operations DMAIC |  Operations Failure Mode and Effects 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. | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | 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. |
Complexitydifferent | Low | High | High |
Timedifferent | 30-60 min | 2-12 Wochen | 2-6 h |
Participantsdifferent | 2-8 | 3-10 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Project Charter, Measurement Plan, Cause Analysis, Control Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tags1 shared | Root causeQualityOperations | Continuous improvementQualityProcess improvement | RiskQualityOperationsRoot cause |
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