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| Criterion |  Operations Root Cause Tree Analysis |  Operations 5 Whys |  Decision Making Pareto Analysis |
|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. | In many problem situations, effect is distributed unequally across many causes. A Pareto Analysis separates the few drivers with high leverage from the long remainder and focuses attention on what measurably moves the needle. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-3 h | 15-30 min | 30-60 min |
Participantsdifferent | 2-8 | 2-6 | 1-6 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Root cause notes, Countermeasures | Pareto Chart, Top Causes, Focus List |
Tags1 shared | Root causeTreeIncidentQuality | Root causeIncidentLeanProblem solving | PrioritizationQualityFocusRoot cause |
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