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| Criterion |  UX Research Diary Study |  UX Research Contextual Inquiry |  Decision Making Decision Matrix |  Product Strategy RICE 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 several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | When many initiatives compete for the same resources, it brings reach, impact, confidence, and effort into one shared ranking. It makes prioritization economically connectable. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 1-4 Wochen | 1-3 Wochen | 45-90 min | 60-90 min |
Participantsdifferent | 5-20 | 4-12 Beobachtungen | 2-8 | 2-10 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Field Notes, Workflow Insights, Pain Points | Decision Matrix, Scoring Rationale, Selected Option | RICE Scores, Ranked List, Assumption Log |
Tagsno overlap | UX researchTrackingBehavior | UX researchObservationContext | DecisionCriteriaScoringTradeoffs | PrioritizationScoringRoadmapTradeoffs |