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| Criterion |  Operations Root Cause Tree Analysis |  Architecture arc42 |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-3 h | 1-2 Tage | 15-30 min |
Participantsdifferent | 2-8 | 1-4 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Architecture Document, Context View, Runtime View, Deployment View | Root cause notes, Countermeasures |
Tagsno overlap | Root causeTreeIncidentQuality | ArchitectureDocumentationCommunication | Root causeIncidentLeanProblem solving |
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