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| Criterion |  UX Research Diary Study |  Decision Making Assumption Surfacing |  Engineering Failure Scenario Analysis |  Product Strategy DIBB |
|---|---|---|---|---|
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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-4 Wochen | 45-90 min | 1-3 h | 1-2 h |
Participantsdifferent | 5-20 | 2-8 | 3-8 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Assumption List, Critical Assumptions, Learning Plan | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | DIBB document, Belief list, Bet list, Learning report |
Tagsno overlap | UX researchTrackingBehavior | AssumptionsRiskDecisionDiscovery | FailureResilienceRisk | StrategyDecisionAssumptionsHypothesis |