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| Criterion |  Product Strategy Lean Canvas |  Delivery RAID Log |  Product Discovery Smoke Test |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | 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 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 | Medium | Low | Low | Medium |
Timedifferent | 45-90 min | 30 min Setup, dann laufend | 1-5 Tage | 1-5 Tage |
Participantsdifferent | 1-6 | 1-3 maintaining, briefing for everyone | Nutzertraffic | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Async | Async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | RAID Log, Status Report Source | Interest Metrics, Conversion Signal, Learning Note | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | StartupLeanAssumptionsBusiness model | RiskTrackingStakeholdersGovernance | ValidationExperimentsDemandGrowth | ValidationExperimentsDemandDiscovery |