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| Criterion |  Operations DMAIC |  Architecture C4 Model |  Operations Root Cause Analysis |  Operations Scatter Diagram |
|---|---|---|---|---|
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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. |
Complexitydifferent | High | Low | Medium | Low |
Timedifferent | 2-12 Wochen | 1-4 h | 1-4 h | 30-90 min |
Participantsdifferent | 3-10 | 1-5 | 3-8 | 1-4 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Context Diagram, Container Diagram, Component Diagram | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Scatter Plot, Korrelationsnotiz, Hypothesenliste |
Tagsno overlap | Continuous improvementQualityProcess improvement | ArchitectureCommunicationVisualization | Root causeProblem solvingQualityIncident | Root causeQualityVisualization |