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| Criterion |  Systems Thinking Evaporating Cloud |  Decision Making Delphi Method |  Operations 5 Whys |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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. | 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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 60-120 min | 1-4 Wochen | 15-30 min | 1-6 Wochen |
Participantsdifferent | 2-8 | 6-30 Experten | 2-6 | 4-10 |
Formatdifferent | Workshop | Async | Workshop | Workshop + async |
Outputdifferent | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Expert Forecast, Consensus Range, Assumption Notes | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Theory of ConstraintsAssumptionsSystems thinking | ForecastingExpertsDecisionStrategy | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |