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| Criterion |  UX Research User Interviews |  Architecture Architecture Communication Canvas |  Architecture C4 Model |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 30–60 min per interview | 60-120 min | 1-4 h | 1-2 Tage |
Participantsdifferent | 1 participant per interview | 2-8 | 1-5 | 1-4 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Context Diagram, Container Diagram, Component Diagram | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ArchitectureCommunicationStakeholdersCanvas | ArchitectureCommunicationVisualization | ArchitectureDocumentationCommunication |