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| Criterion |  UX Research Diary Study |  Systems Thinking Evaporating Cloud |  Operations Causal Factor Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 1-4 Wochen | 60-120 min | 2-6 h | 2-4 h |
Participantsdifferent | 5-20 | 2-8 | 3-10 | 2-6 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | UX researchTrackingBehavior | Theory of ConstraintsAssumptionsSystems thinking | CausalityIncidentRoot causeTimeline | Root causeSafetyIncident |