XML DB is a high-performance, native XML storage and retrieval solution. While embedding HTTP/S, WebDAV, and FTP protocol support to the database, it also provides additional access methods for navigating and querying XML such as fragment extraction and update, XML Schema validation, SQL and XML interoperability, XPath evaluation, XQuery, and XSL transformation. The XML Repository embeds the W3C XML data model and manages XML document hierarchies, foldering, access control, and versioning.