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| Criterion |  UX Research User Interviews |  Architecture Software Architecture Canvas |  Architecture C4 Model |
|---|---|---|---|
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 Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | 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 |
Timedifferent | 30–60 min per interview | 1-2 h | 1-4 h |
Participantsdifferent | 1 participant per interview | 3-10 | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Architecture Canvas, Goals, Constraints, Quality Attributes | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | QualitativeResearchCustomerDiscovery | CanvasArchitectureAlignmentWorkshop | ArchitectureCommunicationVisualization |
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