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| Criterion |  UX Research Affinity Diagramming |  Architecture Architecture Decision Record |  Product Discovery Fake Door Test |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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 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 | Low | Medium | Medium |
Timedifferent | 45–90 min | 15-45 min | 1-5 Tage | 45-75 min |
Participantsdifferent | 3-10 | 1-3 | Nutzertraffic | 2-8 |
Formatdifferent | Workshop | Async | Async | Workshop |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | ADR File, Decision Log, Rationale | Click Data, Interest Signal, Learning Decision | Test Matrix, Test Plan |
Tagsno overlap | SynthesisQualitativeRoot cause | ArchitectureRationaleDocumentationGovernance | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryOptions |