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| Criterion |  Operations RACI Matrix |  Architecture C4 Model |  Decision Making Decision Rights Mapping |
|---|---|---|---|
Purposedifferent | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | 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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 45-90 min | 1-4 h | 90-180 min |
Participantsdifferent | 2-8 | 1-5 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | RACI Matrix, Responsibility Map, Decision Notes | Context Diagram, Container Diagram, Component Diagram | Decision Rights Matrix, Agreement |
Tagsno overlap | RolesResponsibilityGovernanceOperations | ArchitectureCommunicationVisualization | DecisionGovernanceAlignmentResponsibility |
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