What are the applications of Drupal?

Here are some typical Drupal usages:

• Content management – Using a simple, browser-based interface, members can publish stories, blogs, polls, images, forums, etc. Administrators can easily customize the design of their Drupal installation.
• Hierarchical ordering– The Drupal classification system allows hierarchical ordering, cross-indexing of posts and multiple category sets for most content types. Access to content is controlled through administrator-defined user roles. A search option is also available.
• Weblog – A single installation can be configured as an individual personal weblog site or multiple individual weblogs. Drupal supports the Blogger API, provides RSS feeds for each individual blog and can be set to ping weblog directories when new content is posted on the home page.
• Discussion-based community – A Drupal web site can be successfully used as a discussion forum. Comment boards, attached to most content types, make it simple for members to discuss new posts. Administrators can control whether content and comments are posted without approval, with administrator approval or through community moderation. Collaboration – Used for managing the construction of Drupal, the project module is suitable for supporting other open source software projects. The collaborative book module includes versions control, making it simple for a group to create, revise and maintain documentation or any type of text.