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| Criterion |  UX Research Diary Study |  Product Discovery Smoke Test |  Innovation Design Sprint |
|---|---|---|---|
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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | 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. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 1-4 Wochen | 1-5 Tage | 4-5 Tage |
Participantsdifferent | 5-20 | Nutzertraffic | 5-8 |
Formatdifferent | Async | Async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Interest Metrics, Conversion Signal, Learning Note | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | UX researchTrackingBehavior | ValidationExperimentsDemandGrowth | Design sprintPrototypeValidationInnovation |
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