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| Criterion |  UX Research Usability Testing |  Product Strategy DIBB |  Decision Making Delphi Method |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | 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. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 1-2 h je Session | 1-2 h | 1-4 Wochen | 45-60 min |
Participantsdifferent | Based on research question | 2-8 | 6-30 Experten | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | DIBB document, Belief list, Bet list, Learning report | Expert Forecast, Consensus Range, Assumption Notes | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ValidationUXPrototype | StrategyDecisionAssumptionsHypothesis | ForecastingExpertsDecisionStrategy | AssumptionsRiskExperimentsValidation |