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Selected:4Ls RetrospectiveARID (Active Reviews for Intermediate Designs)Learning ReviewBlameless Postmortem
| Criterion |  Agile 4Ls Retrospective |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Learning Review |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | 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 a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | 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. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 45–75 min | 2–4 h review as a planning range; preparation and evaluation additional | 1-3 h | 30-90 min |
Participantsdifferent | Team members involved | Designers, developers as users, and facilitation | 3-10 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Learning Review Notes, System Factors, Improvement Actions | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | RetrospectiveLearningReflectionTeam | ArchitectureEngineeringFeedbackValidationTasks | LearningRetrospectiveIncidentOperations | Site Reliability EngineeringIncidentLearningReliability |