The Swiss Cheese metaphor is used here for describing three models:

• The original model - explaining failure using a model of cumulative defenses ..., as a sequence of failures of protection layers,
• The extended model ... - used to define additional basic concepts, including risks, protection, threats and add-ons.
• Another metaphor - explaining problem solving using a model of cumulative obstacles ... as a sequence of operational activities in solving problems.

Related

Defenses

Updated on 25 Mar 2017.