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| Criterion |  Operations DMAIC |  Architecture Architecture Decision Record |  Operations Fishbone Diagram |  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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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, 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 | High | Low | Low | High |
Timedifferent | 2-12 Wochen | 15-45 min | 30-60 min | 2-6 h |
Participantsdifferent | 3-10 | 1-3 | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | ADR File, Decision Log, Rationale | Fishbone Diagram, Cause Categories, Investigation Backlog | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Continuous improvementQualityProcess improvement | ArchitectureRationaleDocumentationGovernance | Root causeQualityOperations | RiskQualityOperationsRoot cause |