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| Criterion |  Delivery Value Stream Mapping |  Product Discovery MVP Test Matrix |  Product Discovery Fake Door Test |  Product Discovery Smoke Test |
|---|---|---|---|---|
Purposedifferent | When delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. | 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. | 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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 1-3 h | 45-75 min | 1-5 Tage | 1-5 Tage |
Participantsdifferent | 4-10 | 2-8 | Nutzertraffic | Nutzertraffic |
Formatdifferent | Workshop | Workshop | Async | Async |
Outputdifferent | Current-state map, Future-state map, Bottleneck list | Test Matrix, Test Plan | Click Data, Interest Signal, Learning Decision | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | LeanFlowWasteDelivery | ExperimentsValidationDiscoveryOptions | ValidationExperimentsDemandDiscovery | ValidationExperimentsDemandGrowth |