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| Criterion |  DevOps ChatOps |  DevOps Blameless Postmortem |  Systems Thinking Evaporating Cloud |  Systems Thinking Future Reality Tree |
|---|---|---|---|---|
Purposedifferent | 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. | 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 method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | Ongoing | 30-90 min | 60-120 min | 2-4 h |
Participantsdifferent | 2-20 | 3-12 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Chat Transcript, Action Log, Automations | Postmortem Doc, Action Items, Timeline | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Future Reality Tree, Negative Branches, Assumption List, Improved Injections |
Tagsno overlap | CollaborationEngineeringIncident | Site Reliability EngineeringIncidentLearningReliability | Theory of ConstraintsAssumptionsSystems thinking | Theory of ConstraintsSystems thinkingChange |