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Selected:ARID (Active Reviews for Intermediate Designs)Blameless PostmortemSprint RetrospectiveAfter-Action Review
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  DevOps Blameless Postmortem |  Agile Sprint Retrospective |  Operations After-Action Review |
|---|---|---|---|---|
Purposedifferent | 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. | 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 sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 30-90 min | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 20-45 min |
Participantsdifferent | Designers, developers as users, and facilitation | 3-12 | Scrum Team | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Postmortem Doc, Action Items, Timeline | Improvement actions, Team agreements | Lessons learned, Action items, Event summary |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveImprovementLearning | LearningOperationsImprovement |