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| Criterion |  UX Research Diary Study |  Operations ALPEN Method |  Engineering Failure Scenario 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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 10-20 min daily | 1-3 h |
Participantsdifferent | 5-20 | 1 | 3-8 |
Formatdifferent | Async | Async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Daily Plan, Time Estimates, Review Notes | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions |
Tagsno overlap | UX researchTrackingBehavior | PlanningTime managementProductivityOperations | FailureResilienceRisk |
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