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| Criterion |  UX Research Diary Study |  Operations Gemba Walk |  Systems Thinking Future Reality Tree |
|---|---|---|---|
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 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. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 1-4 Wochen | 30-120 min | 2-4 h |
Participantsdifferent | 5-20 | 2-6 | 3-8 |
Formatdifferent | Async | Workshop | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Observation Notes, Improvement Ideas | Future Reality Tree, Negative Branches, Assumption List, Improved Injections |
Tagsno overlap | UX researchTrackingBehavior | LeanObservationProcessOperations | Theory of ConstraintsSystems thinkingChange |
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