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| Criterion |  Operations Barrier Analysis |  Operations Causal Factor Analysis |  Decision Making Force Field Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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. | In change initiatives, supporting and restraining forces sit at the table at the same time. Force Field Analysis makes these tensions explicit and shows where change can be pushed forward by strengthening or relieving. | 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. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 2-4 h | 2-6 h | 45-90 min | 15-30 min |
Participantsdifferent | 2-6 | 3-10 | 3-12 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Force Field Map, Change Levers, Risk Notes | Root cause notes, Countermeasures |
Tagsno overlap | Root causeSafetyIncident | CausalityIncidentRoot causeTimeline | ChangeDecisionStrategy | Root causeIncidentLeanProblem solving |