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| Criterion |  Operations Barrier Analysis |  Business Strategy Strategy Execution Loop |  DevOps Blameless Postmortem |  Operations Causal Factor Analysis |
|---|---|---|---|---|
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. | The Strategy Execution Loop helps avoid treating strategy as a one-off document. It makes visible how strategic decisions are turned into objectives, initiatives, operational work, measurement, and learning. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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 | High | Medium | High |
Timedifferent | 2-4 h | Initial 3-6 h, then monthly or quarterly reviews | 30-90 min | 2-6 h |
Participantsdifferent | 2-6 | 5-12 | 3-12 | 3-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Execution Loop, Review Cadence, Strategic Learning Log | Postmortem Doc, Action Items, Timeline | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | Root causeSafetyIncident | ExecutionCadenceLearningGovernance | Site Reliability EngineeringIncidentLearningReliability | CausalityIncidentRoot causeTimeline |