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| Criterion |  Operations 8D Problem Solving |  Architecture C4 Model |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | 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. | 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 1-6 Wochen | 1-4 h | 1-3 h |
Participantsdifferent | 4-10 | 1-5 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Context Diagram, Container Diagram, Component Diagram | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | QualityProblem solvingRoot cause | ArchitectureCommunicationVisualization | Root causeTreeIncidentQuality |
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