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| Criterion |  UX Research Diary Study |  Operations Gemba Walk |  Systems Thinking Causal Loop Diagram |  Systems Thinking Behavior Over Time Graph |
|---|---|---|---|---|
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 Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. | A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-4 Wochen | 30-120 min | 1-3 h | 20-45 min |
Participantsdifferent | 5-20 | 2-6 | 2-8 | 1-10 |
Formatdifferent | Async | Workshop | Workshop | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Observation Notes, Improvement Ideas | Causal Loop Diagram, Feedback Notes, Leverage Points | Behavior Over Time Graph, Trend Hypotheses, Key Events |
Tagsno overlap | UX researchTrackingBehavior | LeanObservationProcessOperations | FeedbackSystems thinkingCausalityDynamics | Systems thinkingPatternsDynamics |