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3                                                       XaaS


                                                      Appendix III


                                                    DaaS use cases
                            (This appendix does not form an integral part of this Recommendation.)


            This appendix describes seven DaaS-related use cases in Tables III.1 to III.7.


                              Table III.1 – Office automation of development-oriented enterprise

                   Legend                                         Use case

               Use case title   Office automation of development-oriented enterprise
               Use case         In this scenario, the DaaS users access the enterprise applications and data hosted in virtual
               description      desktops which are created within a DaaS platform. Common applications of this type include
                                online word processing, email, communication, co-operating development, etc. The sales staff
                                also can view customer information and marketing records on the enterprise website. The
                                DaaS platform interacts with traditional enterprise information and communication
                                technology facilities to achieve many control tasks, for instance, using dynamic host
                                configuration protocol (DHCP) to assign an IP address for thin client, leveraging internal
                                domain name system (DNS) server to resolve local host names, and consulting authentication
                                of user desktop sessions.
               High-level figure
                                                Enterprise IT
               describing the use                application
                                                                                   Enterprise IT applications
               case
                                                       VDI infrastructure
                                                  Desktop VM                       Office  CRM  VSS/TFS
                                                    Profiles  Desktop VM
                                                    Apps
                                                            Profiles  Desktop VM
                                                     OS     Apps    Profiles
                                                             OS     Apps                   Enterprise IT infrastructure
                                                                                           - AD (Active directory)
                                                                     OS                    - DHCP
                                                                                           - DNS
                                                                                           - Firewall
                                                                                           - ...
                                                                                            Y.3503(14)_FIII.1
               Derived          –  Single sign-on access control
               requirements     –  QoE
                                –  Standard video codec support
                                –  Support of DaaS client peripherals
                                –  Standard security protocol support




























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