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| Criterion |  UX Research User Interviews |  Product Discovery Concierge MVP |  Architecture C4 Model |  Architecture ARID (Active Reviews for Intermediate Designs) |
|---|---|---|---|---|
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. | When an idea can first fail or grow through genuine hands-on support, it relies on manual work instead of automation. It shows whether user value holds up even under manual execution. | 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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 30–60 min per interview | 1-4 Wochen | 1-4 h | 2–4 h review as a planning range; preparation and evaluation additional |
Participantsdifferent | 1 participant per interview | 3-10 Kunden | 1-5 | Designers, developers as users, and facilitation |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Concierge Learnings, Service Blueprint, MVP Risks | Context Diagram, Container Diagram, Component Diagram | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions |
Tagsno overlap | QualitativeResearchCustomerDiscovery | MVPValidationServiceDiscovery | ArchitectureCommunicationVisualization | ArchitectureEngineeringFeedbackValidationTasks |