Drupal 7

Drupal is a free and open source modular content management system (CMS) written in the programming language PHP. It is used as a back end system for the management of different types of websites, whether it is for a newspaper, personal blogs and / or large corporate and political sites. Drupal is a very modular CMS because it introduces the notion of modules, which hook into the Drupal core in order to extent its functionality. Due to this modular design and the fact that Drupal is open source, it has been experiencing an exponential growth in both demand and development.

Some famous sites using Drupal:

• White House
• The Economist
• MTV UK
• Amnesty International

Drupal 7 (core) includes required modules which can be enabled by the administrator to extend the functionality of the core website. These particular modules give Drupal the ability to:

• Completely revamped User Interface
• Optimizations for further levels of caching to improve site performance and speed
• Integrated image handling and better management of roles / users.
• Multiple-level menu system
• Multiple-site support
• Multiple-user content creation and editing
• Human Factors compliant based design
• Security/new release update notification
• User profiles
• Various access control restrictions
• Workflow tools (Triggers and Actions)

It is important to note that this is only the core set of modules available to Drupal as there are in fact thousands of other modules, which extend this platform.