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| Criterion |  Product Discovery Solution Interview |  UX Research Surveys |  Decision Making Delphi Method |  Innovation Design Sprint |
|---|---|---|---|---|
Purposedifferent | 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 topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 30-60 min je Interview | 3-14 Tage | 1-4 Wochen | 4-5 Tage |
Participantsdifferent | 5-10 Interviews | 50+ | 6-30 Experten | 5-8 |
Formatdifferent | Workshop + async | Async | Async | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Survey Results, Charts, Segment Insights | Expert Forecast, Consensus Range, Assumption Notes | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ValidationInterviewsPrototype | QuantitativeResearchValidation | ForecastingExpertsDecisionStrategy | Design sprintPrototypeValidationInnovation |