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| Criterion |  Agile NoEstimates |  Systems Thinking Current Reality Tree |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | 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. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | High | Low |
Timedifferent | laufend | 2-6 h | 15-30 min |
Participantsdifferent | 2-12 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | Current Reality Tree, Core Problems, Intervention Ideas | Root cause notes, Countermeasures |
Tagsno overlap | EstimationForecastingFlow | Systems thinkingRoot causeConstraintsCausality | Root causeIncidentLeanProblem solving |
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