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| Criterion |  UX Research Diary Study |  Decision Making Pre-Mortem |  Decision Making Delphi Method |  Product Strategy Impact Mapping |
|---|---|---|---|---|
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 knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | When a goal needs to be connected to several possible paths, it shows chains of impact instead of feature lists. It connects business goal, behavior change, and measures. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 1-4 Wochen | 20–45 min | 1-4 Wochen | 45-90 min |
Participantsdifferent | 5-20 | Small cross-functional group | 6-30 Experten | 3-8 |
Formatdifferent | Async | Workshop | Async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Risk list, Mitigation plan, Assumption log | Expert Forecast, Consensus Range, Assumption Notes | Impact Map, Outcome Hypotheses, Delivery Options |
Tagsno overlap | UX researchTrackingBehavior | RiskDecisionFailurePlanning | ForecastingExpertsDecisionStrategy | OutcomesStrategyBehaviorPlanning |