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| Criterion |  DevOps Blameless Postmortem |  UX Design Design Studio |  Operations MORT Analysis |  Operations 5 Whys |
|---|---|---|---|---|
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. | When several designs need to be quickly put in relation to each other, it makes ideas visible and comparable. It encourages early variants instead of long upfront debates. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | 30-90 min | 1-3 h | Mehrere Tage bis Wochen | 15-30 min |
Participantsdifferent | 3-12 | 3-8 | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Sketches, Concept Directions, Design Decisions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Root cause notes, Countermeasures |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | SketchingCollaborationIdeation | Root causeSafetySystemicIncident | Root causeIncidentLeanProblem solving |