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| Criterion |  UX Research Diary Study |  Decision Making Risk Matrix |  Decision Making Pre-Mortem |  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. | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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 | Low | Medium |
Timedifferent | 1-4 Wochen | 30-60 min | 20–45 min | 1-3 h |
Participantsdifferent | 5-20 | 3-10 | Small cross-functional group | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Risk Matrix, Top Risk List | Risk list, Mitigation plan, Assumption log | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions |
Tagsno overlap | UX researchTrackingBehavior | RiskDecisionPrioritizationAssessment | RiskDecisionFailurePlanning | FailureResilienceRisk |