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| Criterion |  UX Research Diary Study |  UX Research First-click Testing |  Innovation Design Sprint |  Product Discovery Solution Interview |
|---|---|---|---|---|
Purposedifferent | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | 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 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 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 | Low | High | Medium |
Timedifferent | 1-4 Wochen | 1-2 Tage | 4-5 Tage | 30-60 min je Interview |
Participantsdifferent | 5-20 | 10-30 | 5-8 | 5-10 Interviews |
Formatdifferent | Async | Async | Workshop | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Click Heatmap, Success Rate, Design Recommendations | Prototype, Test Findings, Decision Rationale | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | UX researchTrackingBehavior | UXNavigationFindabilityValidation | Design sprintPrototypeValidationInnovation | ValidationInterviewsPrototype |