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| Criterion |  Architecture Architecture Decision Record |  Product Discovery MVP Test Matrix |  Product Discovery Fake Door Test |
|---|---|---|---|
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 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. | 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-45 min | 45-75 min | 1-5 Tage |
Participantsdifferent | 1-3 | 2-8 | Nutzertraffic |
Formatdifferent | Async | Workshop | Async |
Outputdifferent | ADR File, Decision Log, Rationale | Test Matrix, Test Plan | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ExperimentsValidationDiscoveryOptions | ValidationExperimentsDemandDiscovery |
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