Localization
Localization is the process of adapting software for a specific language, region, or culture by translating content and adjusting regional conventions.
“The process of making a system suitable for a specific user group.”
(Definition reproduced from the ISTQB Glossary. Copyright belongs to ISTQB.)
View the complete ISTQB GlossaryWhat is Localization?
Localization customizes software for local markets by modifying text, currencies, dates, units, legal requirements, and cultural expectations without changing core functionality.
Language adaptation: User-visible text is translated into the target language.
Regional customization: Formats such as dates, currencies, and numbers follow local conventions.
Testing focus: Localization testing verifies translations and regional behavior.
Real World Example
A regulated product team is preparing a release where Localization appears in reviews, test design conversations, or defect triage rather than as an isolated glossary word.
The risk is that the team treats Localization as interchangeable with nearby ISTQB terms. That makes test scope blurry and can lead to weak evidence for the release decision.
The tester anchors the discussion in the official definition, asks where the concept appears in the product, and designs examples that show the difference between Localization and similar ideas.
The page becomes useful in practice because Localization is connected to a specific testing decision, not memorized as a detached definition.
Practice Questions
Question 1
Which statement BEST describes Localization in the context of ISTQB terminology?
Question 2
A tester needs to explain Localization to a non‑technical stakeholder. Which approach is MOST appropriate?
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