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| Criterion |  DevOps Blameless Postmortem |  Innovation Brainstorming |  Facilitation 1-2-4-All |
|---|---|---|---|
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 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. | When many people in a group too rarely get to speak, 1-2-4-All distributes thinking time more fairly. The format builds participation step by step and makes quiet or still-unformed thoughts usable faster. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 30-90 min | 30-60 min | 10-20 min |
Participantsdifferent | 3-12 | 4-12 | 4-100+ |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Idea pool, Theme clusters, Shortlist | Idea List, Shared Insights, Emergent Themes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | BrainstormingIdeationCreativityWorkshopDivergence | FacilitationInclusionIdeation |
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