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| Criterion |  Architecture arc42 |  Operations Accountability Ladder |  Operations RACI Matrix |  Architecture C4 Model |
|---|---|---|---|---|
Purposedifferent | 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. | With defensive reactions to problems, the method shifts the view from justification to ownership. It makes visible which reaction stage a person or team is currently stuck on. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 1-2 Tage | 20-45 min | 45-90 min | 1-4 h |
Participantsdifferent | 1-4 | 1-8 | 2-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Ownership Reflection, Action Commitment, Coaching Notes | RACI Matrix, Responsibility Map, Decision Notes | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | ArchitectureDocumentationCommunication | ResponsibilityLeadershipTeam | RolesResponsibilityGovernanceOperations | ArchitectureCommunicationVisualization |