View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Product Discovery Dual-Track Agile |  Product Discovery Smoke Test |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When uncertainty and delivery run in parallel, it separates learning work from implementation while keeping both connected. It prevents unvalidated ideas from falling directly into the delivery stream. | 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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 | Laufend, Wochen bis Monate | 1-5 Tage | 20-35 min | 1-5 Tage |
Participantsdifferent | 4-10 | Nutzertraffic | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Discovery Backlog, Delivery Backlog, Experiment-Ergebnisse, Validierte Stories | Interest Metrics, Conversion Signal, Learning Note | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | AgileDiscoveryDelivery | ValidationExperimentsDemandGrowth | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |