In the safety scam, there are things such as a layers of protection diagram:
The idea is that a cause or hazard leads to a consequence only if all the layers fail. This is visually shown in a Swiss cheese diagram:
This is the Cheesecake diagram:
Though, some items are the same:
- There are layers
- If one layer is defective, it may not affect the overall facility
- If all layers are defective, go get your money back.
- Don’t do technical safety while hungry.
Which do you prefer?
Wata - Malaysian Oil and Gas Engineer 