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| Criterion |  Decision Making Delphi Method |  Operations Gemba Walk |  Facilitation 3-Circle Venn Diagram |
|---|---|---|---|
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. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. |
Complexitydifferent | High | Low | Low |
Timedifferent | 1-4 Wochen | 30-120 min | 15-45 min |
Participantsdifferent | 6-30 Experten | 2-6 | 2-8 |
Formatdifferent | Async | Workshop | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Observation Notes, Improvement Ideas | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | ForecastingExpertsDecisionStrategy | LeanObservationProcessOperations | ComparisonFacilitationAlignment |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
