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| Criterion |  Operations Root Cause Analysis |  Engineering Hypothesis-Driven Troubleshooting |  Operations Change Analysis |
|---|---|---|---|
Purposedifferent | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-4 h | 30-240 min | 45-120 min |
Participantsdifferent | 3-8 | 1-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | Root causeProblem solvingQualityIncident | TroubleshootingProblem solvingDiagnosis | ChangeRoot causeTroubleshootingComparison |
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