The vault client should show the local workspace.
You should be able see status of files in your workspace as compared to the common are in the Vault database.
You would be able to see what files are out of date.
You would be able to see what files have been renamed.
You should be able to see state a file is.
You should be able to "Lock" local files that you are certain you don't want to modify or let recalculate.
You should be able to remove files from you local workspace through the client.
You should be able to see what files you haven't checked in.
You should be able to rename, revise, and state change the files in your local workspace and have all three areas update: Workspace, session and Vault database.