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| Criterion |  Operations Causal Factor Analysis |  Operations ALPEN Method |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 2-6 h | 10-20 min daily | 30-90 min |
Participantsdifferent | 3-10 | 1 | 3-12 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Daily Plan, Time Estimates, Review Notes | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | CausalityIncidentRoot causeTimeline | PlanningTime managementProductivityOperations | Site Reliability EngineeringIncidentLearningReliability |
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