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| Criterion |  Engineering Failure Scenario Analysis |  Operations 8D Problem Solving |  Operations Change Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | 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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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 | Medium | High | Medium | Low |
Timedifferent | 1-3 h | 1-6 Wochen | 45-120 min | 15-30 min |
Participantsdifferent | 3-8 | 4-10 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Root cause notes, Countermeasures |
Tagsno overlap | FailureResilienceRisk | QualityProblem solvingRoot cause | ChangeRoot causeTroubleshootingComparison | Root causeIncidentLeanProblem solving |