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Selected:Blameless PostmortemARID (Active Reviews for Intermediate Designs)Causal Factor AnalysisCausal Loop Diagram
| Criterion |  DevOps Blameless Postmortem |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Causal Factor Analysis |  Systems Thinking Causal Loop Diagram |
|---|---|---|---|---|
Purposedifferent | 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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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 Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 30-90 min | 2–4 h review as a planning range; preparation and evaluation additional | 2-6 h | 1-3 h |
Participantsdifferent | 3-12 | Designers, developers as users, and facilitation | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Causal Loop Diagram, Feedback Notes, Leverage Points |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureEngineeringFeedbackValidationTasks | CausalityIncidentRoot causeTimeline | FeedbackSystems thinkingCausalityDynamics |