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| Criterion |  Product Discovery Problem Interview |  Innovation Crazy 8s |  Product Discovery Solution Interview |  Innovation Rapid Ideation |
|---|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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 a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | When a decision needs to be prepared quickly, the method generates many solution-close variants in a short time. It deliberately relies on pace to undercut self-censorship and perfectionism. This quickly produces a usable field for prioritization and further work. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 30-60 min je Interview | 8-15 min | 30-60 min je Interview | 5-20 min |
Participantsdifferent | 5-12 Interviews | 1-10 | 5-10 Interviews | 1-20 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Sketch Set, Idea Shortlist, Direction Options | Solution Feedback, Objection List, Validation Notes | Ideenpool, Roh-Shortlist, Cluster |
Tagsno overlap | DiscoveryInterviewsValidation | BrainstormingSketchingSpeedDivergenceDesign sprint | ValidationInterviewsPrototype | BrainstormingIdeationDivergenceSpeed |