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| Criterion |  Decision Making Delphi Method |  Operations After-Action Review |  Operations Process Mapping |  Operations Gemba Walk |
|---|---|---|---|---|
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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | 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. |
Complexitydifferent | High | Low | Medium | Low |
Timedifferent | 1-4 Wochen | 20-45 min | 1-3 h | 30-120 min |
Participantsdifferent | 6-30 Experten | 3-12 | 3-10 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Lessons learned, Action items, Event summary | Process Map, Handoff List, Improvement Backlog | Observation Notes, Improvement Ideas |
Tagsno overlap | ForecastingExpertsDecisionStrategy | LearningOperationsImprovement | ProcessOperationsImprovement | LeanObservationProcessOperations |