Like the other products in this review, PVCS uses a hierarchical project model for organizing work. The project is the main unit of organization, and items are grouped in folders underneath it. Unlike the other products, however, PVCS organizes work logically rather than physically. An archive, for example, is a logical grouping that represents a file and its history. The archive includes all revisions together with information on who made changes, what the changes were, and why they were made.
Folders are also logical units.
Classifications are made irrespective of any physical location on the disk. Items viewed within a folder may be spread all over the network. This feature gives the product enormous flexibility but also adds to its complexity. At some point someone has to map these logical entities to physical ones. The main Version Manager user interface is the Project Window.