Most developers keep several versions of a QlikView document and prefix or suffix them with a date or version number. Deploying differently-named versions of the same application to the Access Point should be avoided.
There is nothing to prevent a developer from deploying many differently-named versions of an application to the Access Point. It's also possible to deploy different versions of a document with the same name to the Access Point by putting them in different mount folders.
Obviously, these situations should be avoided as they lead to confusion. Always deploy the same document with the same name as part of standard practice, use version numbering in code, and display it for the user to see in the document itself, as described in the Creating and enforcing site standards section in this chapter.