# Version control system

A version control system is used to manage the persistence of all the data relating to the objects (Jobs, Services, Routes, Metadata, Routines, Documentation, etc.) stored in "git" mode in the shared Repository of the Talend Studio.

Qlik recommends you to store several projects per repository, simply in order not to have too many repositories to deal with. However you can choose to store only one project per Git repository, if you prefer so.

For more information on how to configure your version control systems, see [Installing and configuring Git](https://help.qlik.com/talend/en-US/installation-guide-windows/8.0/installing-and-configuring-git "Use Git to store all your project data, such as Jobs, database connections, Routines, Joblets, data models, processes, and stored procedures, in the shared Repository of Talend Studio.").

You can also have several version control repositories each containing several projects. For more information on how to create projects and store them in Git, see [Managing Git branches and tags for a project](https://help.qlik.com/talend/r/en-US/8.0/administration-center-user-guide/managing-svn-git-branches-and-tags-for-project).