Functional Testing is intended to validate that the product functionality meets requirements. This is to be performed on the source language version of product (prior to localization and, possibly, internationalization).
Functional Testing aims to verify that user commands, data manipulation, searches, help files, user screens yield the expected results. Functional testing allows you to discover defects early in the overall product development process.
Integration Testing is used to assess how well the different components of the product function together after they have been tested individually.
g11n offers an agile testing approach capitalizing on onshore and offshore Resources as well automated processes, resulting in a cost-effective solution for your organization.