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| Criterion |  Facilitation Dot Estimation |  Operations Barrier Analysis |  Agile NoEstimates |  Operations Fault Tree Analysis |
|---|---|---|---|---|
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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | When estimating slows a team down more than it helps, it shifts the focus to flow, small slices, and real lead time. It sorts work by value, risk, and delivery ability. The result is captured as Throughput Data, Flow Forecast, and Slicing Rules. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. |
Complexitydifferent | Low | Medium | Medium | High |
Timedifferent | 5-20 min | 2-4 h | laufend | 2-6 h |
Participantsdifferent | 3-20 | 2-6 | 2-12 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Effort Heatmap, Risk Signals, Discussion Targets | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Throughput Data, Flow Forecast, Slicing Rules | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | EstimationEffortRisk | Root causeSafetyIncident | EstimationForecastingFlow | RiskRoot causeSafety |