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| Criterion |  Architecture C4 Model |  Architecture Architecture Inception Canvas |  Operations Root Cause Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | The Architecture Inception Canvas bundles the first architecture questions into a compact decision picture. It fits when an initiative is still in motion but still needs clear guardrails. | 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. | 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 | Low | Low | Medium | Low |
Timedifferent | 1-4 h | 1-2 h | 1-4 h | 15-30 min |
Participantsdifferent | 1-5 | 3-8 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Inception Canvas, Risks, Goal List, Open Questions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureCommunicationVisualization | AlignmentArchitectureCanvas | Root causeProblem solvingQualityIncident | Root causeIncidentLeanProblem solving |