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| Criterion |  Facilitation Timeline |  Facilitation Nominal Group Technique |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | When a project, incident, or change process is only remembered in fragments, Timeline brings the sequence back into a readable form. It makes turning points, precursors, and after-effects recognizable over the course of time. | When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. | 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 | Low | Medium | Low | Low |
Timedifferent | 30-90 min | 60-120 min | 30-60 min | 20-35 min |
Participantsdifferent | 2-12 | 5-12 | 1-5 | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Timeline, Milestones, Insight Notes | Ranked Ideas, Clarified Options, Group Priority | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | TimelineFacilitationSequence | FacilitationPrioritizationVotingInclusion | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |