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| Criterion |  Decision Making Wideband Delphi |  Operations A3 Problem Solving |  Operations After-Action Review |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | 1-4 h or multiple rounds | 45-90 min | 20-45 min | 15-30 min |
Participantsdifferent | 4-12 Experten | 2-5 | 3-12 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus Notes | A3 Report, Action Plan, Root Cause Analysis | Lessons learned, Action items, Event summary | Root cause notes, Countermeasures |
Tagsno overlap | EstimationExpertsForecasting | LeanProblem solvingCoachingOperations | LearningOperationsImprovement | Root causeIncidentLeanProblem solving |