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Selected:Fault IsolationC4 ModelARID (Active Reviews for Intermediate Designs)Architecture Communication Canvas
| Criterion |  Engineering Fault Isolation |  Architecture C4 Model |  Architecture ARID (Active Reviews for Intermediate Designs) |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-180 min | 1-4 h | 2–4 h review as a planning range; preparation and evaluation additional | 60-120 min |
Participantsdifferent | 1-6 | 1-5 | Designers, developers as users, and facilitation | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Context Diagram, Container Diagram, Component Diagram | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ArchitectureCommunicationVisualization | ArchitectureEngineeringFeedbackValidationTasks | ArchitectureCommunicationStakeholdersCanvas |