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| Criterion |  Innovation Design Thinking |  Product Discovery Solution Interview |  Product Discovery Test Card |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
Purposedifferent | 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 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | 1 Tag bis mehrere Wochen | 30-60 min je Interview | 20-35 min | 30-60 min |
Participantsdifferent | 4-10 | 5-10 Interviews | 1-5 | 1-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Solution Feedback, Objection List, Validation Notes | Test Card with a pre-set threshold | Completed Experiment Canvas, Success Metric |
Tagsno overlap | InnovationPrototypeResearch | ValidationInterviewsPrototype | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |