The Role of Internationalization and Localization in Software Testing

In Today’s competitive world, the clients are targeting global audience for their products and applications. In order to target global audiences, it is imperative to go beyond borders and work with clients to ensure that the application is properly accessible, readable and viewable in cross-browsers and multiple platforms. In order to be readable and viewable by one and all, it becomes important that the application is multi-lingual. In order to achieve a multi-lingual and multi-functional website or application, globalization (Internationalization) and localization testing is performed.

Globalization testing is performed to ensure functionality of the application in any culture or language. It is the process of validating whether the application is capable of using all over the world and whether it accepts all the language texts. It is popularly known as “G11N“, as there are 11 characters between G and N. This testing ensures that the product achieves international support without breaking the core functionality. It helps in proper functioning of the product with all sorts of locale/ culture settings. Whereas, localization testing is the process of testing the software in order to check the localized version of the product for that specific locale setting. UI and content are the specific areas that are affected by localization testing. It is also known as L10N as there are 10 characters between L and N.

The main aim of internationalization and localization testing is to ensure acceptability, reliability, and usability to the audiences worldwide. Initially, the application test needs to be localized and then the testing for the other counts like language, copy text, compatibility, and interoperability are performed.

The purpose of Globalization in software testing?

The main aim of globalization is to check the functionality of the application with different language. It might be possible that the functionality of the application does not support a language other than English. To check that there is no hard-coded string customized in the code. By changing the language setting from the computer, the coding can be properly checked. Numbers, character sets, and currencies have to be checked for different countries.

Benefits of L10N and G11N Testing:

• Reduction in the overall testing costs

• Less time-consumption that results in faster time-to-market

• Reduction in support costs

• More scalability in flexibility


The L10N and G11N testing are performed to adapt a product to a local market and the main goal for this testing is to make suitable cultural and linguistic characteristics of the product. It is a type of non-functional testing that is performed by translators, localizers, and language engineers. In order to release your product world-wide, it is imperative to perform the localization and globalization testing.