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| Criterion |  Operations Waste Analysis |  Operations Causal Factor Analysis |  Operations A3 Problem Solving |
|---|---|---|---|
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. | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 45-120 min | 2-6 h | 45-90 min |
Participantsdifferent | 2-8 | 3-10 | 2-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Waste Map, Prioritized Waste, Improvement Backlog | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | WasteLeanProcess improvement | CausalityIncidentRoot causeTimeline | LeanProblem solvingCoachingOperations |
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