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| Criterion |  Operations Waste Analysis |  Decision Making PERT Estimation |  Operations Causal Factor Analysis |
|---|---|---|---|
Purposedifferent | For a process that keeps people busy but creates little value, the method exposes waste. It directs attention to unnecessary movement, waiting times, rework, and overdelivery. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 45-120 min | 15-45 min | 2-6 h |
Participantsdifferent | 2-8 | 1-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Waste Map, Prioritized Waste, Improvement Backlog | PERT Estimate, Expected Value, Risk Notes | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | WasteLeanProcess improvement | EstimationUncertaintyRisk | CausalityIncidentRoot causeTimeline |
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