Page 49 - Cloud computing: From paradigm to operation
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Framework and requirements for cloud computing                              1


                                                         Use case
             Pre-conditions   In this service syndication example involving multiple clouds, voice application is being
                              provided as SaaS to a CSP that is bundling it with other services and reselling a package to a
                              CSC. Although a voice application service provider may run a global data network, it does not
                              own the carrier's network and enterprise infrastructures that actually connect the cloud and
                              network services to end-user devices. A local service provider might provide an IP network
                              service to provide an optimized voice application experience for an enterprise customer's
                              employees using the voice application service.
                              In this use case, there are the two types of connection paths, namely a service delivery path
                              and a service management path. When the CSC is experiencing a problem with the voice
                              application service, the responsibility for the diagnostics, management and resolution of the
                              problem involves more than one service provider.
                              End-to-end resource management cannot require a major system integration effort with each
                              new service deployment. In order for the composite cloud computing services to work
                              effectively, all the prerequisite services of both the CSP1 and CSP2 must function properly.
             Post-conditions   Voice application service is restored rapidly and easily.
                              End-to-end resource management of components that deliver the voice application customer
                              service support and the administrative, provisioning, service assurance and billing that make
                              up a complete voice application service is necessary.
             Requirements     –  Manageability for a single cloud service
                              –  Manageability for multiple cloud services

            I.10    Cloud infrastructure use case


                                                         Use case
             Name             Cloud infrastructure use case
             Abstract         The CSP uses cloud infrastructure which consists of compute, storage and network resources
                              to deploy and deliver any kinds of cloud services.
                              The CSC accesses and uses cloud services deployed in and delivered by cloud infrastructure.

             Roles            CSC, CSP
             Figure





































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