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| Criterion |  Innovation Double Diamond |  Innovation Design Sprint |  UX Research First-click Testing |  Product Discovery Solution Interview |
|---|---|---|---|---|
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 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 users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | 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. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | Wochen bis Monate | 4-5 Tage | 1-2 Tage | 30-60 min je Interview |
Participantsdifferent | 3-12 | 5-8 | 10-30 | 5-10 Interviews |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Prototype, Test Findings, Decision Rationale | Click Heatmap, Success Rate, Design Recommendations | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | ProcessDivergenceInnovation | Design sprintPrototypeValidationInnovation | UXNavigationFindabilityValidation | ValidationInterviewsPrototype |