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| Criterion |  UX Research Diary Study |  Engineering Failure Scenario Analysis |  Product Strategy DIBB |  Business Strategy Business Model Stress Test |
|---|---|---|---|---|
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 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. | A Business Model Stress Test checks how well a business model holds up under pressure and headwinds. It compares strengths, risks, market logic, and courses of action. The result is captured as a stress-test report and action plan per scenario. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 1-4 Wochen | 1-3 h | 1-2 h | Half day |
Participantsdifferent | 5-20 | 3-8 | 2-8 | 3-8 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | DIBB document, Belief list, Bet list, Learning report | Stress Test Report, Action Plan per Scenario |
Tagsno overlap | UX researchTrackingBehavior | FailureResilienceRisk | StrategyDecisionAssumptionsHypothesis | StrategyBusiness modelRiskDiagnosis |