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| Criterion |  DevOps Blameless Postmortem |  Operations Family Tree Analysis |  Innovation Brainstorming |
|---|---|---|---|
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. | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 30-90 min | 2-4 h | 30-60 min |
Participantsdifferent | 3-12 | 2-6 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Family Tree Diagram, Pattern Notes, Systemic Measures | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Root causePatternsIncidentSystemic | BrainstormingIdeationCreativityWorkshopDivergence |
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