To help you organize files on your system, Dreamweaver re-creates the structure of the remote web site on your local system. The links you create at your local site continue to work on the remote site because the structure of the two sites is identical.
You create a local site in Dreamweaver by selecting a local root folder with the Define Sites command. See Creating a local site. You associate your local site with a remote server by selecting additional options in the Define Sites dialog box. See Defining a site.
When transferring files between local and remote sites, Dreamweaver maintains identical directory structures to ensure that links and references are not accidentally broken. If directories do not exist on the site where files are being transferred, Dreamweaver automatically creates them.
Dreamweaver includes a number of features for structuring a site, navigating within and between documents, and transferring files to a remote server. To make collaborative work on a web site easier, you can check in and check out files on the remote server to prevent others from working on the same files at the same time. Dreamweaver does not perform version control, nor does it remove files or folders on the remote server that no longer exist in the local root folder.