Advanced – Non-Functional Testing
Bulkhead Pattern – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A resilience pattern that isolates resources (thread pools, connections) so failure in one component does not exhaust the whole system.
In simple words
Walling off resources so one failure can’t sink the whole system.
Exam tip
Named after ship compartments — prevents one slow dependency from blocking all threads.
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