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| Criterion |  Operations DMAIC |  Operations Fault Tree Analysis |  Operations MORT Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | 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 critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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. |
Complexitysame | High | High | High | High |
Timedifferent | 2-12 Wochen | 2-6 h | Mehrere Tage bis Wochen | 2-6 h |
Participantsdifferent | 3-10 | 3-8 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Continuous improvementQualityProcess improvement | RiskRoot causeSafety | Root causeSafetySystemicIncident | RiskQualityOperationsRoot cause |