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| Criterion |  Operations 5 Whys |  Operations RACI Matrix |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | 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. | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | 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 | Low | Low | High |
Timedifferent | 15-30 min | 45-90 min | 1-6 Wochen |
Participantsdifferent | 2-6 | 2-8 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | RACI Matrix, Responsibility Map, Decision Notes | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Root causeIncidentLeanProblem solving | RolesResponsibilityGovernanceOperations | QualityProblem solvingRoot cause |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
