6. LAYERS Contd. Ra Handles "repository access", both local and remote. Repositories are referred to using URLs, i.e. file:///path/ for local access, http://host/path/ (or https) for WebDAV access svn://host/path/ (or svn+ssh) for the SVN protocol. Client, Wc The highest level. It abstracts repository access It provides common client tasks, e.g authenticating the user, or comparing versions. The Wc library is used by Client to manage the local working copy.