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| Criterion |  Product Discovery Problem Interview |  Architecture arc42 |  UX Research User Interviews |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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. | 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 Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 30-60 min je Interview | 1-2 Tage | 30–60 min per interview | 60-120 min |
Participantsdifferent | 5-12 Interviews | 1-4 | 1 participant per interview | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Architecture Document, Context View, Runtime View, Deployment View | Interview Notes, Themes, Insight Summary | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | DiscoveryInterviewsValidation | ArchitectureDocumentationCommunication | QualitativeResearchCustomerDiscovery | ArchitectureCommunicationStakeholdersCanvas |