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| Criterion |  Operations Gemba Walk |  Decision Making Delphi Method |  Decision Making Force Field Analysis |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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 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. | In change initiatives, supporting and restraining forces sit at the table at the same time. Force Field Analysis makes these tensions explicit and shows where change can be pushed forward by strengthening or relieving. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Low | High | Low | Medium |
Timedifferent | 30-120 min | 1-4 Wochen | 45-90 min | 45-90 min |
Participantsdifferent | 2-6 | 6-30 Experten | 3-12 | 2-5 |
Formatdifferent | Workshop | Async | Workshop | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Expert Forecast, Consensus Range, Assumption Notes | Force Field Map, Change Levers, Risk Notes | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanObservationProcessOperations | ForecastingExpertsDecisionStrategy | ChangeDecisionStrategy | LeanProblem solvingCoachingOperations |