A system and method for translating source data from a source language to a target language. The source data is uploaded by a user and received by the translation system after proper user authentication. The source data is fragmented into source segments that can be separately translated. Revision control is provided by locking each source segment so that each source segment is not subject to multiple translations at any given time. A segment status is applicable to each one of the segments. Upon completion of translation, each source segment is recombined into a single target data.