CMS is short for Content Management System. This is an installed software platform that lays on top of your hosting site to provide functionality out of the box. WordPress currently holds the top spot as leading Content Management System, with other strong contenders including Drupal and Joomla. There are also crossovers between Shopping Cart platforms and CMS platforms like PrestaShop, Magento and more. CMS has become a widely accepted means of shortcutting the development process. No longer does a site owner have to pay for development of standard functionality since it comes out of the box with most Content Management Systems.