View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  DevOps Blameless Postmortem |  Systems Thinking Soft Systems Methodology |  Operations Root Cause Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
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. | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 30-90 min | 0.5-3 Tage | 1-4 h | 2-4 h |
Participantsdifferent | 3-12 | 5-15 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Soft systemsComplexitySensemakingSystems thinking | Root causeProblem solvingQualityIncident | Root causeSafetyIncident |