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| Criterion |  Innovation Design Sprint |  UX Research User Interviews |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | High | Low | Low | Low |
Timedifferent | 4-5 Tage | 30–60 min per interview | 30-60 min | 20-35 min |
Participantsdifferent | 5-8 | 1 participant per interview | 1-5 | 1-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prototype, Test Findings, Decision Rationale | Interview Notes, Themes, Insight Summary | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | Design sprintPrototypeValidationInnovation | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |