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3                                                       XaaS




                                         Table III.5 – Service continuation for DaaS

                  Legend                                         Use case
             High-level figure
             describing the use
             case

















             Derived          –  Resiliency to disaster
             requirements     –  Service continuity
                              –  Monitoring and controlling DaaS
                              –  Maintaining DaaS user status
                              –  CSC environment backup
                              –  DaaS client reconnection
                              –  Display redirection



                                          Table III.6 – Home application using DaaS

                  Legend                                         Use case

             Use case title   Home application using DaaS
             Use case         CSCs access the home applications and data hosted in virtual desktops which are created
             description      within a DaaS platform in home. This type of service can support a computer for multi-users
                              with own virtual desktops in small area. CSCs can access their own virtual machine with any
                              DaaS clients through a delivery protocol for virtual desktops in home. Since CSC's access is
                              taken in local area in this application, a certain access protocol can be adopted for the
                              dedicated network or the dedicated DaaS client. CSP can distribute the package for server
                              management and installation to support configuration functions by on-line or off-line ways.
             High-level figure
             describing the use
             case
                                                                               CSP: Distribute on/offline
                                                                               and install DaaS server and
                                             WAN                               management function.
                                                      Client
                                                                                    Virtual desktop server
                                      Client          Protocol
                                                                               V 1M               V 4M
                                                          WAN
                                                  Virtual                    Connection manager  System manager
                                           Client  desktop
                                                 delivery                              HyperVisor
                                                 protocol
                                                                                          Protocol transfer
                                                                              Network card
                                                                                             module
                                                Protocol
                                                                                                 Y.3503(14)_FIII.6


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