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| Criterion |  Innovation Brainstorming |  Product Discovery Test Card |  Innovation Starbursting |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | Helps clarify ideas, open questions, and testable next steps in concrete terms. It opens the thinking space, collects ideas, and leads to testable options. The result is captured as a star-shaped question map, question list, and assumption list. | 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 | Low | Low | Low | Medium |
Timedifferent | 30-60 min | 20-35 min | 30-60 min | 1-5 Tage |
Participantsdifferent | 4-12 | 1-5 | 3-10 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Idea pool, Theme clusters, Shortlist | Test Card with a pre-set threshold | Star-Shaped Question Map, Question List, Assumption List | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | BrainstormingIdeationCreativityWorkshopDivergence | ExperimentsValidationDiscoveryHypothesis | BrainstormingIdeationWorkshopDiscovery | ValidationExperimentsDemandDiscovery |