The Swiss Cheese Model: Understanding Accidents and Risks
The Swiss Cheese Model, also known as the Reason Model, is a powerful tool used in risk analysis and management across various fields. It helps us visualize and understand how accidents occur, especially complex ones with multiple contributing factors.

This model compares a system with multiple layers of defenses, each represented by a slice of Swiss cheese. Each slice has holes representing potential weaknesses or failures. An accident only occurs when holes in all the layers align, allowing a hazard to pass through and cause harm.