How to read these
Each case opens with what the operational metric was saying and walks through what the causal model showed about the variables underneath. Model files ship with every case.
The cases
Utility Grid Risk → Capital deferral decisions are made as if the grid is static.
Load is shifting, mix is shifting, and the controls available now will look different in five years. A static reliability model assumes the deferred asset will be needed for the same job; the causal model represents what happens when the job changes.
Asset Reliability → The control that prevented the problem you can’t see.
Three unplanned outages looks like a failure. The causal model asked how many would have occurred without the program. The KPI was wrong because the intervention was working.
Supply Chain Risk → The risk you didn’t know was there.
Three suppliers in three countries. The scorecard called it diversification. The causal model found one fabricator with three labels — $23M in concentration risk scored as managed.
Quality & Defect Attribution → The defect rate is 2.3%. Which line, which material, which operator?
A predictive model can tell you defects are correlated with night shift on line 4. A causal model tells you whether changing the line, the shift, or the supplier reduces the rate — and by how much.
Training Effectiveness → The training completion rate is 94%. The performance metric was unmeasured.
Completion was answerable from existing systems; the actual reason the program existed was not. The cheaper metric won by default. A causal model is what isolates the training effect from everything else that affects performance.
Next
For the methods behind these cases, see Risk Aggregation, Confounding, and Time-Varying Models. For the wider portfolio across all five risk types, see About Risk.