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| Criterion |  Facilitation World Café |  Facilitation Lean Coffee |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | When a group needs to connect many viewpoints in a short time, World Café creates a calm alternation between closeness and rotation. It sets thinking in motion without forcing the conversation into full-plenary rigidity. | When a group without a fixed agenda needs to get into useful conversations quickly, Lean Coffee structures the start around interests rather than a presentation. The group itself negotiates which topics get time first and which wait. | When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 60-180 min | 30-90 min | 30-60 min | 20-35 min |
Participantsdifferent | 12-100+ | 3-20 | 1-5 | 1-5 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Table Notes, Emergent Themes, Shared Questions | Prioritized Topics, Discussion Notes, Action Items | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | FacilitationDialogueLarge groupSensemaking | FacilitationAutonomyDialogue | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |