Drupal is a modular content management system, forum, blogging and community engine. It is database driven and can be used with MySQL, MariaDB, PostgreSQL, and SQLite. Its features include (but are not limited to) discussion forums, Web-based administration, theme support, a submission queue, content rating, content versioning, taxonomy support, user management with a fine-grained permission system based on user roles (groups), error logging, support for content syndication, locale support, and much more. It is considered to be an excellent platform for developers due to its clean code and extensibility, and it can also be used as a Web application framework.
IXThemes is an implementation of innovative methods in the development of qualitative modules and themes for PHP based Open-Source CMS (content management systems) such as WordPress, XOOPS, Drupal, ImpressCMS, and EXM System. It also develops modules and themes for PHP based Open-Source e-commerce software such as PrestaShop.