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| Criterion |  Architecture C4 Model |  UX Research Personas |  Decision Making DACI |
|---|---|---|---|
Purposedifferent | 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. | When target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 1-4 h | 1-3 Tage | 30-60 min |
Participantsdifferent | 1-5 | Internes Team | 2-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Persona Profiles, Needs Summary, Scenario Notes | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | ArchitectureCommunicationVisualization | ResearchCustomerSynthesis | DecisionRolesGovernanceAlignment |
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