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| Criterion |  Operations 5 Whys |  Engineering Hypothesis-Driven Troubleshooting |
|---|---|---|
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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. |
Complexitydifferent | Low | Medium |
Timedifferent | 15-30 min | 30-240 min |
Participantsdifferent | 2-6 | 1-6 |
Formatdifferent | Workshop | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary |
Tags1 shared | Root causeIncidentLeanProblem solving | TroubleshootingProblem solvingDiagnosis |
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