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| Criterion |  Architecture Architecture Decision Record |  UX Research Personas |  Product Discovery Opportunity Interview |  Product Discovery Problem Interview |
|---|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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 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. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 15-45 min | 1-3 Tage | 30-60 min je Interview | 30-60 min je Interview |
Participantsdifferent | 1-3 | Internes Team | 5-12 Interviews | 5-12 Interviews |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Persona Profiles, Needs Summary, Scenario Notes | Interview Notes, Opportunity Themes, Customer Quotes | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ResearchCustomerSynthesis | DiscoveryInterviewsOpportunityCustomer | DiscoveryInterviewsValidation |