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| Criterion |  Decision Making Delphi Method |  Decision Making Wideband Delphi |  Facilitation Nominal Group Technique |
|---|---|---|---|
Purposedifferent | 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. | When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. |
Complexitydifferent | High | High | Medium |
Timedifferent | 1-4 Wochen | 1-4 h or multiple rounds | 60-120 min |
Participantsdifferent | 6-30 Experten | 4-12 Experten | 5-12 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Estimate Range, Assumption Log, Expert Consensus Notes | Ranked Ideas, Clarified Options, Group Priority |
Tagsno overlap | ForecastingExpertsDecisionStrategy | EstimationExpertsForecasting | FacilitationPrioritizationVotingInclusion |
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