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| Criterion |  Architecture Architecture Decision Record |  Product Discovery Opportunity Interview |  Architecture arc42 |  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 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. | 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 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 | Low | Medium |
Timedifferent | 15-45 min | 30-60 min je Interview | 1-2 Tage | 30-60 min je Interview |
Participantsdifferent | 1-3 | 5-12 Interviews | 1-4 | 5-12 Interviews |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Interview Notes, Opportunity Themes, Customer Quotes | Architecture Document, Context View, Runtime View, Deployment View | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | DiscoveryInterviewsOpportunityCustomer | ArchitectureDocumentationCommunication | DiscoveryInterviewsValidation |