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| Criterion |  UX Research Empathy Mapping |  Architecture Architecture Decision Record |  Product Discovery Experiment Canvas |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. | 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | 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 | Low | Low | Medium |
Timedifferent | 30–60 min | 15-45 min | 30-60 min | 1-5 Tage |
Participantsdifferent | 4-8 | 1-3 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop | Async | Workshop + async | Async |
Outputdifferent | Empathy Map, Assumptions List, Research Gaps | ADR File, Decision Log, Rationale | Completed Experiment Canvas, Success Metric | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | SynthesisQualitativeWorkshop | ArchitectureRationaleDocumentationGovernance | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |