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| Criterion |  Delivery Value Stream Mapping |  Operations MORT Analysis |  Operations Causal Factor Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | When delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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. | 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. |
Complexitydifferent | Medium | High | High | High |
Timedifferent | 1-3 h | Mehrere Tage bis Wochen | 2-6 h | 2-6 h |
Participantsdifferent | 4-10 | 2-6 | 3-10 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Current-state map, Future-state map, Bottleneck list | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | LeanFlowWasteDelivery | Root causeSafetySystemicIncident | CausalityIncidentRoot causeTimeline | Systems thinkingRoot causeConstraintsCausality |