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| Criterion |  UX Research Diary Study |  Delivery Value Stream Mapping |  Operations Gemba Walk |  UX Research Contextual Inquiry |
|---|---|---|---|---|
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 delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 1-3 h | 30-120 min | 1-3 Wochen |
Participantsdifferent | 5-20 | 4-10 | 2-6 | 4-12 Beobachtungen |
Formatdifferent | Async | Workshop | Workshop | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Current-state map, Future-state map, Bottleneck list | Observation Notes, Improvement Ideas | Field Notes, Workflow Insights, Pain Points |
Tagsno overlap | UX researchTrackingBehavior | LeanFlowWasteDelivery | LeanObservationProcessOperations | UX researchObservationContext |