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| Criterion |  Operations RACI Matrix |  UX Research Customer Journey Mapping |  Architecture arc42 |  Architecture C4 Model |
|---|---|---|---|---|
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. | When a user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | 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. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 45-90 min | 2-4 h | 1-2 Tage | 1-4 h |
Participantsdifferent | 2-8 | 4-10 | 1-4 | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | RACI Matrix, Responsibility Map, Decision Notes | Journey Map, Pain-point List, Opportunity Backlog | Architecture Document, Context View, Runtime View, Deployment View | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | RolesResponsibilityGovernanceOperations | JourneyServiceService design | ArchitectureDocumentationCommunication | ArchitectureCommunicationVisualization |