Created with EdrawMax, this diagram presents Reason's Swiss - Cheese Model. It features layered “cheese slices” representing system components: “Organizational Influences” (yellow), “Unsafe supervision” (purple), “Preconditions for unsafe acts” (green), and “Unsafe acts” (red). Each layer contains “Latent failure” gaps. When these gaps align, coupled with “Active failure,” an “Accident” (red star) occurs. The model demonstrates how systemic issues—from organizational flaws to unsafe behaviors—create pathways for accidents. By visualizing latent failures across layers, it underscores the need to address multiple system levels for effective accident prevention, serving as a foundational tool in safety management and risk assessment.
