Drupal Versus Your Source Code Control System
Drupal is provided as PHP source code that is copied directly on to your web server, and if, like us, you develop extra modules to extend Drupal, they slot neatly in to the Drupal directory structure. If you want to co-ordinate your team using a source-code control system like Subversion or you need to plan ahead to allow for Drupal upgrades to be achieved without clobbering your changes. Read more