A vault is a combination of a Meridian database and a document store. It contains all of the documents you place in the vault, the data about those documents, all revisions of those documents made in the vault, and redline data for the documents. If some of your documents use references to other documents, such as with CAD files, then those references between documents will automatically be managed by Meridian. This means that you can move files between folders within the Meridian vault (such as from one project to another), and the references will not be lost, because they are managed by Meridian.
