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| Criterion |  UX Research Diary Study |  Delivery RAID Log |  Operations Barrier Analysis |  Operations Fault Tree 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. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | 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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 1-4 Wochen | 30 min Setup, dann laufend | 2-4 h | 2-6 h |
Participantsdifferent | 5-20 | 1-3 maintaining, briefing for everyone | 2-6 | 3-8 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | RAID Log, Status Report Source | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | UX researchTrackingBehavior | RiskTrackingStakeholdersGovernance | Root causeSafetyIncident | RiskRoot causeSafety |