Chapter 5 – Test Management
Work Breakdown Structure (WBS) Estimation – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
An estimation technique in which work is decomposed into smaller pieces that are estimated individually and summed.
In simple words
Break the work into tiny tasks, estimate each, add them up.
Exam tip
Detailed and defensible, but time-consuming — reserve for large efforts.
Related terms
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