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| Criterion |  Architecture arc42 |  Product Discovery Opportunity Interview |  Product Discovery Fake Door Test |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | 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 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 demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 1-2 Tage | 30-60 min je Interview | 1-5 Tage | 45-75 min |
Participantsdifferent | 1-4 | 5-12 Interviews | Nutzertraffic | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Interview Notes, Opportunity Themes, Customer Quotes | Click Data, Interest Signal, Learning Decision | Test Matrix, Test Plan |
Tagsno overlap | ArchitectureDocumentationCommunication | DiscoveryInterviewsOpportunityCustomer | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryOptions |