Controls on System Migration toward Higher Risk

4 Controls on System Migration toward Higher Risk 

One of the key assumptions underlying the approach to safety described in this book is that systems adapt and change over time. Under various types of pressures, that adaptation often moves in the direction of higher risk. The good news is, as stated earlier, that adaptation is predictable and potentially controllable. The safety control structure must provide protection from and appropriate responses to the continuing influences and pressures that tend to degrade safety over time. More 

After the Columbia accident, safety standards in the Space Shuttle program (and the rest of NASA) were effectively anchored and protected from dilution over time by moving responsibility for them outside the projects. 

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Controls on system migration toward higher risk... 

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