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| Criterion |  UX Research Contextual Inquiry |  Agile Affinity Estimation |  Decision Making Delphi Method |  Decision Making Wideband Delphi |
|---|---|---|---|---|
Purposedifferent | When work processes are known only from accounts and the real context stays hidden, Contextual Inquiry makes behavior at the workplace visible. Observation and follow-up questions together show how people actually work, get interrupted, and improvise. | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | 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. | 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. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 1-3 Wochen | 30-90 min | 1-4 Wochen | 1-4 h or multiple rounds |
Participantsdifferent | 4-12 Beobachtungen | 3-12 | 6-30 Experten | 4-12 Experten |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Field Notes, Workflow Insights, Pain Points | Affinity Size Map, Grouped Estimates, Unclear Items | Expert Forecast, Consensus Range, Assumption Notes | Estimate Range, Assumption Log, Expert Consensus Notes |
Tagsno overlap | UX researchObservationContext | EstimationBacklogRelative sizing | ForecastingExpertsDecisionStrategy | EstimationExpertsForecasting |