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| Criterion |  Architecture Architecture Communication Canvas |  Operations 5 Whys |  Architecture C4 Model |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. | 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 complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 60-120 min | 15-30 min | 1-4 h | 45-90 min |
Participantsdifferent | 2-8 | 2-6 | 1-5 | 2-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Root cause notes, Countermeasures | Context Diagram, Container Diagram, Component Diagram | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ArchitectureCommunicationStakeholdersCanvas | Root causeIncidentLeanProblem solving | ArchitectureCommunicationVisualization | LeanProblem solvingCoachingOperations |