Chapter 5 – Test Management
Expert-Based Estimation – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
An estimation technique in which estimates are made by domain experts based on their experience.
In simple words
Ask someone experienced how long it will take.
Exam tip
Fast and cheap but subject to bias — pair with a group technique.
Related terms
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