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| Criterion |  Facilitation Fishbowl Discussion |  Product Discovery Hypothesis Prioritization Canvas |  Product Discovery Opportunity Solution Tree |  Product Discovery Test Card |
|---|---|---|---|---|
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 many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 45-90 min | 60-90 min | 1-2 h Setup, laufend | 20-35 min |
Participantsdifferent | 8-80 | 3-8 | 2-6 | 1-5 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Discussion Insights, Observed Tensions, Follow-up Questions | Prioritization Canvas, Hypothesis Backlog | Opportunity Solution Tree, Experiment Backlog, Learning Log | Test Card with a pre-set threshold |
Tagsno overlap | FacilitationDialogueLarge group | ExperimentsPrioritizationDiscoveryHypothesis | DiscoveryOutcomesExperimentsOpportunity | ExperimentsValidationDiscoveryHypothesis |