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| Criterion |  Operations Root Cause Analysis |  Operations Change Analysis |  Operations Ivy Lee Method |
|---|---|---|---|
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. | 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-4 h | 45-120 min | 5-10 min daily |
Participantsdifferent | 3-8 | 2-6 | 1 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Daily Priority List, Completion Notes |
Tagsno overlap | Root causeProblem solvingQualityIncident | ChangeRoot causeTroubleshootingComparison | PrioritizationProductivityExecution |
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