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| Criterion |  UX Research User Interviews |  Innovation Design Thinking |  Product Discovery MVP Test Matrix |  Innovation Design Sprint |
|---|---|---|---|---|
Purposedifferent | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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 several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | 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 | Low | High | Medium | High |
Timedifferent | 30–60 min per interview | 1 Tag bis mehrere Wochen | 45-75 min | 4-5 Tage |
Participantsdifferent | 1 participant per interview | 4-10 | 2-8 | 5-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Problem Statement, Prototype, Test Learnings | Test Matrix, Test Plan | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | QualitativeResearchCustomerDiscovery | InnovationPrototypeResearch | ExperimentsValidationDiscoveryOptions | Design sprintPrototypeValidationInnovation |