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| Criterion |  Operations 8D Problem Solving |  Decision Making Delphi Method |  Facilitation Decision Jam |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | 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 a decision is stuck, Decision Jam loosens the knot through structured separation of problem, idea, and selection. The format creates movement without jumping prematurely at the first seemingly elegant answer. | 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 | High | Low | Low |
Timedifferent | 1-6 Wochen | 1-4 Wochen | 60-90 min | 15-30 min |
Participantsdifferent | 4-10 | 6-30 Experten | 4-10 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Expert Forecast, Consensus Range, Assumption Notes | Problem Cluster, Prioritized Challenge, Experiment | Root cause notes, Countermeasures |
Tagsno overlap | QualityProblem solvingRoot cause | ForecastingExpertsDecisionStrategy | FacilitationDecisionProblem solvingWorkshop | Root causeIncidentLeanProblem solving |