To connect a Qlikview server (QVS) each client needs a CAL(client access license) The CALs are purchased with Qlikview Server and tied to the server serial number. A CAL is never transformed to the client but a client uses the CAL when connecting to the server.
1.Named User CAL: Named CAL can access all the documents
2.Document CAL: Document CAL can access particular document
3.session CAL: A session allows any user identified or anonymous/unidentified on one QV client to access many QV documents as may reside on the server
4.Usage CAL: allows any user to access only one QV document residing on the server