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| Criterion |  Product Discovery Solution Interview |  Architecture Architecture Decision Record |  Product Discovery MVP Test Matrix |
|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 30-60 min je Interview | 15-45 min | 45-75 min |
Participantsdifferent | 5-10 Interviews | 1-3 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | ADR File, Decision Log, Rationale | Test Matrix, Test Plan |
Tagsno overlap | ValidationInterviewsPrototype | ArchitectureRationaleDocumentationGovernance | ExperimentsValidationDiscoveryOptions |
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