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| Criterion |  Architecture Architecture Decision Record |  Product Discovery Smoke Test |  Product Strategy ICE Scoring |  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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | When ideas need sorting quickly, it condenses impact, confidence, and effort into one compact score. It connects customer value, product logic, and decision priorities. The result is captured as an ICE table and top-ideas list. | 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 | 15-45 min | 1-5 Tage | 30-60 min | 1-5 Tage |
Participantsdifferent | 1-3 | Nutzertraffic | 2-8 | Nutzertraffic |
Formatdifferent | Async | Async | Workshop + async | Async |
Outputdifferent | ADR File, Decision Log, Rationale | Interest Metrics, Conversion Signal, Learning Note | ICE Table, Top Idea List | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ValidationExperimentsDemandGrowth | PrioritizationScoringGrowthDecision | ValidationExperimentsDemandDiscovery |