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| Criterion |  Operations Kaizen Event |  Operations ALPEN Method |  Systems Thinking Current Reality Tree |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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 | Medium | Low | High | High |
Timedifferent | 0.5-5 Tage | 10-20 min daily | 2-6 h | 2-6 h |
Participantsdifferent | 4-10 | 1 | 3-8 | 3-10 |
Formatdifferent | Workshop | Async | Workshop | Workshop + async |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Daily Plan, Time Estimates, Review Notes | Current Reality Tree, Core Problems, Intervention Ideas | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | LeanContinuous improvementOperations | PlanningTime managementProductivityOperations | Systems thinkingRoot causeConstraintsCausality | CausalityIncidentRoot causeTimeline |