Linguistic Testing

Linguistic testing (also called localisation testing or linguistic QA) is the process of reviewing translated software, websites, or applications in their actual user context to verify that translations are accurate, fit correctly within the user interface, and function as intended. Unlike standard translation review which examines text in isolation, linguistic testing evaluates translations as they appear and behave in the final product.

Linguistic testing identifies issues that cannot be caught through standard translation review alone. These include truncated text where translations are too long for UI elements, layout problems caused by text expansion or different character sets, context errors where the same source string has been translated identically but appears in different contexts requiring different translations, functionality issues where translated text breaks interactive elements such as buttons, forms, or dropdown menus, encoding problems where characters display incorrectly, and concatenation issues where dynamically assembled text strings produce grammatically incorrect or nonsensical translations.

The testing process typically involves testers who are native speakers of the target language navigating through the product, comparing the localised version against the source, and logging issues using a structured bug reporting framework. Issues are categorised by severity and type, enabling development and translation teams to prioritise fixes.

LEXIGO provides linguistic testing services for software, websites, and applications, using native-speaker testers who evaluate localised products in their real user context to catch issues that desktop review cannot detect.

A translation can be perfect in a spreadsheet but broken in the actual product. Linguistic testing is the quality gate that catches issues arising from the interaction between translated text and the technical environment in which it appears. Skipping this step risks releasing products with visible quality issues that undermine user experience and brand credibility in target markets.

For organisations launching localised software, websites, or applications, linguistic testing is an essential final quality step before release — as important as functional testing for the overall product quality.