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| Criterion |  Architecture C4 Model |  UX Research Personas |  Product Discovery Opportunity Interview |  UX Research User Interviews |
|---|---|---|---|---|
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. | When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 1-4 h | 1-3 Tage | 30-60 min je Interview | 30–60 min per interview |
Participantsdifferent | 1-5 | Internes Team | 5-12 Interviews | 1 participant per interview |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Persona Profiles, Needs Summary, Scenario Notes | Interview Notes, Opportunity Themes, Customer Quotes | Interview Notes, Themes, Insight Summary |
Tagsno overlap | ArchitectureCommunicationVisualization | ResearchCustomerSynthesis | DiscoveryInterviewsOpportunityCustomer | QualitativeResearchCustomerDiscovery |