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| Criterion |  UX Research Diary Study |  Decision Making Three-Point Estimation |  Decision Making Wideband Delphi |  Decision Making Delphi Method |
|---|---|---|---|---|
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. | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | 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. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 1-4 Wochen | 10-30 min je Item | 1-4 h or multiple rounds | 1-4 Wochen |
Participantsdifferent | 5-20 | 1-8 | 4-12 Experten | 6-30 Experten |
Formatdifferent | Async | Workshop + async | Workshop + async | Async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Three-Point Estimate, Risk Range, Assumption Notes | Estimate Range, Assumption Log, Expert Consensus Notes | Expert Forecast, Consensus Range, Assumption Notes |
Tagsno overlap | UX researchTrackingBehavior | EstimationUncertaintyForecasting | EstimationExpertsForecasting | ForecastingExpertsDecisionStrategy |