Risk Isolation/Compartmentalization
Updated 2026-09-10
INTRODUCTION
English translation pending.
CORE DEFINITION
Risk isolation, or compartmentalization, divides a system into separate compartments and places firewalls between them so that a failure inside one is contained at its source and cannot propagate, as with a ship's watertight compartments, a bank's legal entity isolation, or position limits on investments. Its core claim is that limiting the spread of damage protects the core of the system, and that isolation together with redundancy forms the basis of resilience. The condition is that logical coupling be checked too, since shared resources can silently defeat physical separation.
SCAFFOLDING EFFECT
Reduce cognitive load
- Map the propagation paths: identify dependencies and shared resources that could carry failure between units. - Cut along boundaries: split compartments by function or legal entity and install firewalls or circuit breakers. - Test single failures: drill one compartment failing to verify the isolation actually holds.
Anchor fast decisions
Isolation splits a system into independent compartments with blocking mechanisms between them, so a local failure is contained at its source instead of spreading through shared dependencies or correlated exposure; lowering the system's coupling shrinks the blast radius, and isolation plus redundancy forms the basis of resilience.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- wiki.mbalib.comhttps://wiki.mbalib.com/wiki/%E9%A3%8E%E9%99%A9%E9%9A%94%E7%A6%BBverified
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