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OT principles
ASD Essentials

Essentials for OT

IDE-05 Asset interdependencies

one actionNot in enterprise IT

Map how your safety systems link together, so you can see how a compromise of one could affect others. Record the safety components of physical and electrical systems, and how safety systems connect to and depend on each other.

Reviewed 18 October 2026 · Current to ASD's Essentials for OT, published 15 October 2026

The principle

Interdependencies between systems (infrastructure, operating systems, applications and data) are continually and centrally identified and documented, including how the compromise of one system could affect the security or business operations of other dependent systems.

ASD, Information Security Manual (ISM), Principle IDE-05

The action

ASD's actions are quoted as published in Essentials for OT. ASD has not given them IDs, so they are numbered by position.

  1. Action 1 of 1

    Identify and document safety components for physical and electrical systems, including the connectivity and dependency relationships between safety systems.

    In plain English: Find and record the safety components of physical and electrical systems. Include how safety systems connect to and depend on each other.

    Domains
    Critical processes and services

See all 34 principles in Essentials for OT, or read our OT guide.

Sources

The ASD publications this page quotes.

Quoted ASD material © Commonwealth of Australia 2026, licensed under CC BY 4.0.

Everything else on this page is written by Control Stack.