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| Criterion |  Architecture Risk Storming |  DevOps Blameless Postmortem |  Operations 5 Whys |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | 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 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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | Medium | Low | High |
Timedifferent | 60-90 min | 30-90 min | 15-30 min | 1-6 Wochen |
Participantsdifferent | 4-12 | 3-12 | 2-6 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Annotated Diagram, Prioritized Risk List, Action Backlog | Postmortem Doc, Action Items, Timeline | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | RiskArchitectureWorkshopValidation | Site Reliability EngineeringIncidentLearningReliability | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |