5Q Quadrants·of·Risk

The framework · one of five quadrants

Q3 · Engineered

Engineered

Tightly coupled systems where one small fault cascades and takes down the whole machine.

The parts are individually sound and the couplings are not. A single fault propagates faster than anyone can interrupt it, and the size of the failure has almost nothing to do with the size of the fault that started it.

How to spot it. Look at what cannot be switched off independently. That is where the cascade will run.

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26Events in this quadrant
13Marked · behaved like another quadrant
7Arrived from another

Every event filed in Q3 Engineered

13 of these are marked: filed here, but running another quadrant’s mechanism by the end. The paperwork never changed.

Filed elsewhere, behaved like Q3 Engineered

These sit in another quadrant on the map. By the end they were running this quadrant’s mechanism.

The other four quadrants

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