View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  UX Research Diary Study |  Decision Making Pre-Mortem |  Decision Making Constraint Analysis |  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. | 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. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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 | 20–45 min | 30-90 min | 1-3 h |
Participantsdifferent | 5-20 | Small cross-functional group | 2-8 | 3-8 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Risk list, Mitigation plan, Assumption log | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions |
Tagsno overlap | UX researchTrackingBehavior | RiskDecisionFailurePlanning | ConstraintsDecisionPlanningOptions | FailureResilienceRisk |