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| Criterion |  UX Research User Interviews |  Architecture C4 Model |  Facilitation Problem Framing Workshop |  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 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 a team works on symptoms but the real question stays fuzzy, a Problem Framing Workshop sharpens the view of the right problem. It separates observation, interpretation, and target picture from each other. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 30–60 min per interview | 1-4 h | 60-120 min | 1-2 Tage |
Participantsdifferent | 1 participant per interview | 1-5 | 4-10 | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Context Diagram, Container Diagram, Component Diagram | Problem Statement, Scope Boundaries, Assumption List, Next Analysis Questions | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ArchitectureCommunicationVisualization | FacilitationAlignmentDiscovery | ArchitectureDocumentationCommunication |