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Selected:Sprint RetrospectiveBlameless PostmortemArchitecture Communication CanvasAfter-Action Review
| Criterion |  Agile Sprint Retrospective |  DevOps Blameless Postmortem |  Architecture Architecture Communication Canvas |  Operations After-Action Review |
|---|---|---|---|---|
Purposedifferent | 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 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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 | Low | Medium | Medium | Low |
Timedifferent | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 30-90 min | 60-120 min | 20-45 min |
Participantsdifferent | Scrum Team | 3-12 | 2-8 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Improvement actions, Team agreements | Postmortem Doc, Action Items, Timeline | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Lessons learned, Action items, Event summary |
Tagsno overlap | RetrospectiveImprovementLearning | Site Reliability EngineeringIncidentLearningReliability | ArchitectureCommunicationStakeholdersCanvas | LearningOperationsImprovement |