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| Criterion |  Facilitation Dot Estimation |  DevOps Blameless Postmortem |  Systems Thinking Current Reality Tree |
|---|---|---|---|
Purposedifferent | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 5-20 min | 30-90 min | 2-6 h |
Participantsdifferent | 3-20 | 3-12 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Effort Heatmap, Risk Signals, Discussion Targets | Postmortem Doc, Action Items, Timeline | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | EstimationEffortRisk | Site Reliability EngineeringIncidentLearningReliability | Systems thinkingRoot causeConstraintsCausality |
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