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| Criterion |  Product Discovery Problem Interview |  Architecture Architecture Decision Record |  Product Discovery Learning Card |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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 | Low | Medium |
Timedifferent | 30-60 min je Interview | 15-45 min | 25-40 min | 45-75 min |
Participantsdifferent | 5-12 Interviews | 1-3 | 1-5 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | ADR File, Decision Log, Rationale | Learning Card with evidence and next action | Test Matrix, Test Plan |
Tagsno overlap | DiscoveryInterviewsValidation | ArchitectureRationaleDocumentationGovernance | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryOptions |