Chapter 4 – Test Analysis & Design
Branch Coverage – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
The percentage of branches that have been exercised by a test suite. 100% branch coverage implies both 100% decision coverage and 100% statement coverage.
In simple words
Executed branches ÷ total branches × 100 — covers both true and false outcomes of each decision.
Exam tip
Branch coverage is the CTFL v4.0 default structural coverage measure.
Related terms
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