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| Criterion |  Product Discovery Opportunity Interview |  Architecture C4 Model |  UX Research User Interviews |
|---|---|---|---|
Purposedifferent | 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. | 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 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 | Medium | Low | Low |
Timedifferent | 30-60 min je Interview | 1-4 h | 30–60 min per interview |
Participantsdifferent | 5-12 Interviews | 1-5 | 1 participant per interview |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Opportunity Themes, Customer Quotes | Context Diagram, Container Diagram, Component Diagram | Interview Notes, Themes, Insight Summary |
Tagsno overlap | DiscoveryInterviewsOpportunityCustomer | ArchitectureCommunicationVisualization | QualitativeResearchCustomerDiscovery |
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