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| Criterion |  DevOps Blameless Postmortem |  Operations Causal Factor Analysis |  Innovation Brainstorming |  DevOps Incident Timeline 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. | 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. | 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. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 30-90 min | 2-6 h | 30-60 min | 60-180 min |
Participantsdifferent | 3-12 | 3-10 | 4-12 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Idea pool, Theme clusters, Shortlist | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | CausalityIncidentRoot causeTimeline | BrainstormingIdeationCreativityWorkshopDivergence | IncidentTimelineSite Reliability Engineering |