Web-based Distributed Authoring and Versioning, or WebDAV, is a set of extensions to the Hypertext Transfer Protocol (HTTP) that allows computer-users to edit and manage files collaboratively on remote World Wide Web servers. RFC 4918 defines the extensions. The group of developers responsible for these extensions was also known by the same name and was a working group of the Internet Engineering Task Force (IETF). The WebDAV protocol allows interactivity, making the Web a readable and writable medium, in line with Tim Berners-Lee''s original vision. It allows users to create, change and move documents on a remote server (typically a web server or "web share"). This has obvious uses when authoring the documents that a web server serves, but it can also be used for storing files on the web, so that the files can be accessed from anywhere. The most important features of the WebDAV protocol include: