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| Criterion |  DevOps Blameless Postmortem |  Innovation Crazy 8s |  Architecture ARID (Active Reviews for Intermediate Designs) |  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. | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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 | Low | Medium | Low |
Timedifferent | 30-90 min | 8-15 min | 2–4 h review as a planning range; preparation and evaluation additional | 30-60 min |
Participantsdifferent | 3-12 | 1-10 | Designers, developers as users, and facilitation | 4-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Sketch Set, Idea Shortlist, Direction Options | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | BrainstormingSketchingSpeedDivergenceDesign sprint | ArchitectureEngineeringFeedbackValidationTasks | BrainstormingIdeationCreativityWorkshopDivergence |