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| Criterion |  Product Discovery Problem Interview |  Product Discovery Solution Interview |  Innovation Brainstorming |  Innovation Starbursting |
|---|---|---|---|---|
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. | 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 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. | 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-60 min je Interview | 30-60 min je Interview | 30-60 min | 30-60 min |
Participantsdifferent | 5-12 Interviews | 5-10 Interviews | 4-12 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Solution Feedback, Objection List, Validation Notes | Idea pool, Theme clusters, Shortlist | Star-Shaped Question Map, Question List, Assumption List |
Tagsno overlap | DiscoveryInterviewsValidation | ValidationInterviewsPrototype | BrainstormingIdeationCreativityWorkshopDivergence | BrainstormingIdeationWorkshopDiscovery |