Cybersecurity

Purdue model

Definition

A reference architecture organizing industrial systems into levels, from field devices at Level 0 through control and supervisory layers to enterprise networks at Level 5.

Its practical value is defining where boundaries belong, particularly the demilitarized zone between operations and business networks.

The Purdue ModelThe reference architecture most segmentation designs still start from: what each level contains, where the DMZ goes, and how it maps to a water utility.

Purdue model

Definition

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