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| Criterion |  UX Research Diary Study |  UX Research Contextual Inquiry |  Product Strategy RICE Scoring |  Product Strategy ICE Scoring |
|---|---|---|---|---|
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 work processes are known only from accounts and the real context stays hidden, Contextual Inquiry makes behavior at the workplace visible. Observation and follow-up questions together show how people actually work, get interrupted, and improvise. | When many initiatives compete for the same resources, it brings reach, impact, confidence, and effort into one shared ranking. It makes prioritization economically connectable. | When ideas need sorting quickly, it condenses impact, confidence, and effort into one compact score. It connects customer value, product logic, and decision priorities. The result is captured as an ICE table and top-ideas list. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 1-4 Wochen | 1-3 Wochen | 60-90 min | 30-60 min |
Participantsdifferent | 5-20 | 4-12 Beobachtungen | 2-10 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Field Notes, Workflow Insights, Pain Points | RICE Scores, Ranked List, Assumption Log | ICE Table, Top Idea List |
Tagsno overlap | UX researchTrackingBehavior | UX researchObservationContext | PrioritizationScoringRoadmapTradeoffs | PrioritizationScoringGrowthDecision |