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| Criterion |  DevOps Blameless Postmortem |  DevOps ChatOps |  Architecture Software Architecture Canvas |  Architecture Architecture Inception Canvas |
|---|---|---|---|---|
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. | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | The Architecture Inception Canvas bundles the first architecture questions into a compact decision picture. It fits when an initiative is still in motion but still needs clear guardrails. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-90 min | Ongoing | 1-2 h | 1-2 h |
Participantsdifferent | 3-12 | 2-20 | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Chat Transcript, Action Log, Automations | Architecture Canvas, Goals, Constraints, Quality Attributes | Inception Canvas, Risks, Goal List, Open Questions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | CollaborationEngineeringIncident | CanvasArchitectureAlignmentWorkshop | AlignmentArchitectureCanvas |