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Selected:Blameless PostmortemSAAM (Software Architecture Analysis Method)Architecture Communication CanvasC4 Model
| Criterion |  DevOps Blameless Postmortem |  Architecture SAAM (Software Architecture Analysis Method) |  Architecture Architecture Communication Canvas |  Architecture C4 Model |
|---|---|---|---|---|
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. | SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 30-90 min | Preparation, scenario analysis, and findings review; effort depends on scope | 60-120 min | 1-4 h |
Participantsdifferent | 3-12 | Architecture experts and stakeholders for scenarios and weighting | 2-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Domain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternatives | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureChangeAnalysisComparisonQuality | ArchitectureCommunicationStakeholdersCanvas | ArchitectureCommunicationVisualization |