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| Criterion |  Operations DMAIC |  Decision Making Wideband Delphi |  Operations 8D Problem Solving |  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. | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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 | 1-4 h or multiple rounds | 1-6 Wochen | 2-6 h |
Participantsdifferent | 3-10 | 4-12 Experten | 4-10 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Estimate Range, Assumption Log, Expert Consensus Notes | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Continuous improvementQualityProcess improvement | EstimationExpertsForecasting | QualityProblem solvingRoot cause | RiskQualityOperationsRoot cause |