View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Facilitation Fishbowl Discussion |  Product Discovery Opportunity Solution Tree |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When a controversial topic needs depth and discipline at the same time, Fishbowl Discussion makes the structure of the conversation transparent. The format keeps the core small enough for real dialogue and open enough for controlled turnover. | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. | 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 | Medium | Low | Medium |
Timedifferent | 45-90 min | 1-2 h Setup, laufend | 20-35 min | 1-5 Tage |
Participantsdifferent | 8-80 | 2-6 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Discussion Insights, Observed Tensions, Follow-up Questions | Opportunity Solution Tree, Experiment Backlog, Learning Log | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | FacilitationDialogueLarge group | DiscoveryOutcomesExperimentsOpportunity | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |