View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Product Discovery Solution Interview |  Innovation Design Thinking |  Product Discovery Fake Door Test |  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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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. | 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 | High | Medium | High |
Timedifferent | 30-60 min je Interview | 1 Tag bis mehrere Wochen | 1-5 Tage | 4-5 Tage |
Participantsdifferent | 5-10 Interviews | 4-10 | Nutzertraffic | 5-8 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Problem Statement, Prototype, Test Learnings | Click Data, Interest Signal, Learning Decision | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ValidationInterviewsPrototype | InnovationPrototypeResearch | ValidationExperimentsDemandDiscovery | Design sprintPrototypeValidationInnovation |