MediaWiki vs XWiki: What are the differences?
Developers describe MediaWiki as "A free and open-source wiki engine". It is a free server-based software. It is an extremely powerful, scalable software and a feature-rich wiki implementation that uses PHP to process and display data stored in a database, such as MySQL. On the other hand, XWiki is detailed as "The Advanced Open Source Enterprise Wiki". It is a free wiki software platform written in Java with a design emphasis on extensibility. It is an enterprise wiki. It includes WYSIWYG editing, OpenDocument based document import/export, semantic annotations and tagging, and advanced permissions management.
MediaWiki and XWiki can be primarily classified as "Knowledge Management" tools.