Page 572 - Cloud computing: From paradigm to operation
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3                                                       XaaS




                                             Table III.3 – Scenario of DaaS user

                  Legend                                         Use case
                              •  Task workers: If an organization includes structured task workers, such as in call centres
                                 and retail branches, DaaS can provide a more cost-effective and productive user
                                 experience because these user roles do not typically need access to multiple applications
                                 to complete business processes. Additionally, there are situations when the location is
                                 simply not capable of supporting a fully functioning client computer; instead, thin-client
                                 solutions are more applicable. The same experience can be provided even if the client
                                 computer is a legacy computer. This type of deployment can extend the reach of
                                 applications within the enterprise and is a valuable way to deliver the right business tools
                                 in a cost-effective way.
                              •  Contractor/Offshore workers: Many companies are leveraging workforce experience from
                                 around the world. Organizations will need to provide access to applications for users
                                 located both remotely and internationally. In order to provide access to resources while
                                 respecting corporate policies, providing a virtual desktop or virtual desktop pool becomes
                                 very attractive for organizations. This allows users to receive a first-class client on the
                                 network while allowing the organization to control where the virtual desktop is running,
                                 how the virtual desktop is accessed, how data is being run on the client computer and
                                 where data is stored.
                              •  Remote workers in branch offices: In an environment that relies on remote or branch
                                 offices, DaaS can provide enhanced capabilities to these sites and reduce the network
                                 bandwidth that the required applications use. For example, a bank might have essential
                                 financial software applications that would not be cost-effective to deploy and maintain in
                                 every branch. With DaaS, the software can be available at a central headquarters and
                                 accessed as needed by employees in different locations. A centralized-applications strategy
                                 often results in a reduction of application server infrastructure at various branches or
                                 locations, requiring much less maintenance and on-site support from the home office
                                 information technology (IT) staff.
             High-level figure
             describing the use
             case




















             Derived          –  Single sign-on access control
             requirements     –  Service continuity
                              –  Diversity of DaaS client
                              –  Managing and operating pre-configured environment
                              –  Maintaining DaaS user status
                              –  CSC environment backup
                              –  Standard transport protocols support






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