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| Criterion |  Innovation Crazy 8s |  Product Discovery Opportunity Solution Tree |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | 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. | 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 | Medium | Medium |
Timedifferent | 8-15 min | 1-2 h Setup, laufend | 1-5 Tage |
Participantsdifferent | 1-10 | 2-6 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Async |
Outputdifferent | Sketch Set, Idea Shortlist, Direction Options | Opportunity Solution Tree, Experiment Backlog, Learning Log | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | BrainstormingSketchingSpeedDivergenceDesign sprint | DiscoveryOutcomesExperimentsOpportunity | ValidationExperimentsDemandDiscovery |
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