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| Criterion | ![]() DevOps Blameless Postmortem | ![]() Team Design Spotify Model Mapping | ![]() Facilitation Expectation Mapping | ![]() DevOps Incident Command |
|---|---|---|---|---|
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 roles, interfaces, or projects fail because of differing expectations, Expectation Mapping surfaces these differences. It shows what each side takes for granted and where the pictures diverge. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-90 min | 90-180 min | 45-90 min | As needed |
Participantsdifferent | 3-12 | 5-15 | 3-12 | 4-15 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Spotify Model Map, Action List | Expectation Map, Alignment Notes, Agreements | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | TeamOrganizationAlignmentDiagnosis | AlignmentStakeholdersTeam | IncidentOperationsReliability |



