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| Criterion |  Delivery Value Stream Mapping |  Product Discovery Fake Door Test |  Product Discovery Test Card |
|---|---|---|---|
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 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-3 h | 1-5 Tage | 20-35 min |
Participantsdifferent | 4-10 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop | Async | Workshop + async |
Outputdifferent | Current-state map, Future-state map, Bottleneck list | Click Data, Interest Signal, Learning Decision | Test Card with a pre-set threshold |
Tagsno overlap | LeanFlowWasteDelivery | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryHypothesis |
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