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Selected:Blameless PostmortemSpotify Model MappingTeam Topologies Interaction Modes4Ls Retrospective
| Criterion |  DevOps Blameless Postmortem |  Team Design Spotify Model Mapping |  Team Design Team Topologies Interaction Modes |  Agile 4Ls Retrospective |
|---|---|---|---|---|
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. | When a team landscape has grown without clear grouping, it maps roles and relationships onto the Spotify model. It clarifies responsibility, interaction, and load between teams. The result is captured as a Spotify model map and action list. | When several teams collaborate repeatedly, it describes the right interaction mode for each interface between them. It clarifies responsibility, interaction, and load between teams. The result is captured as an interaction heat map and pairwise agreements. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-90 min | 90-180 min | Half day | 45–75 min |
Participantsdifferent | 3-12 | 5-15 | Team-Leads plus Architecture | Team members involved |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Spotify Model Map, Action List | Interaction Heat Map, Agreements per Pair | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | TeamOrganizationAlignmentDiagnosis | TeamAlignmentCollaborationOrganization | RetrospectiveLearningReflectionTeam |