WebDAV Overview

WebDAV (Web-based Distributed Authoring and Versioning) is a standardized set of extensions to the HTTP protocol (the basis of the World Wide Web) that allows users to collaboratively edit and manage files on remote Web servers. WebDAV has widespread vendor support in the industry and is used with many browsers, editors, file systems, document repositories, and databases. The use of a WebDAV enabled client (such as xmlspy® 2004) in conjunction with a WebDAV enabled server changes the way users interact with the World Wide Web. While today the Web is largely a read-only resource, WebDAV has the potential to transform the Internet into a fully writeable medium capable of supporting collaboration and distributed file sharing.

http://www.altova.com/features_webdav.html