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| Criterion |  Innovation Double Diamond |  UX Research Usability Testing |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | 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 | Medium | Medium | Low | Low |
Timedifferent | Wochen bis Monate | 1-2 h je Session | 30-60 min | 20-35 min |
Participantsdifferent | 3-12 | Based on research question | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Usability Issues, Severity List, Recommendations | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | ProcessDivergenceInnovation | ValidationUXPrototype | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |