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| Criterion |  UX Research Diary Study |  Knowledge Modeling IBIS |  Decision Making Pre-Mortem |
|---|---|---|---|
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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-4 Wochen | 1-3 h | 20–45 min |
Participantsdifferent | 5-20 | 2-8 | Small cross-functional group |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Issue Map, Positions, Argument Notes | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | UX researchTrackingBehavior | RationaleKnowledgeDecision | RiskDecisionFailurePlanning |
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