Page 165 - Cloud computing: From paradigm to operation

Framework and requirements for cloud computing 1

Table I.3 – A general use case of cloud service integration

Derived – User interface for CSCs (See clause 7.1)
requirements – Delivering cloud service provision request (See clause 7.4)
– Cloud service monitoring (See clause 7.5)
– Registration of cloud service (See clause 7.2)

Table I.4 – A general use case of cloud service customization
Title A general use case for cloud service customization in cloud service brokerage.

Description This use case describes a general use case for cloud service customization. Cloud service
customization in cloud service brokerage is a service model to search, compose and provide a
customized cloud service to a CSC according to the CSC' service requirements. If a CSN: cloud
service broker cannot discover a service that fulfils CSC's service requirements in the product
catalogue, the CSN: cloud service broker integrates and configures existing services to
composite a new customized service. Such as, layering new data and process functions,
visibility and analytics, or incorporating a new look and feel to the service. CSC's service
requirements can consist of multiple parameters such as service names, the amount of
required resources, required service levels, required software, required configurations and so
on. The CSN: cloud service broker collects multiple cloud services provided by different CSPs,
performs customization on these cloud services according to CSCs' requirements.
(1) When a CSC could not find a satisfied service from the product catalogue, the CSC requests
a cloud service with service requirements to a CSN: cloud service broker.
(2) The CSN: cloud service broker searches a cloud service, which fulfils the CSC's
requirements, from product catalogue.
(3) If the CSN: cloud service broker cannot find an appropriate service from the service list
registered in the product catalogue, the CSN: cloud service broker initiates customization
process in order to generate a customized service according to the CSC's requirements.
The CSN: cloud service broker integrates and/or configures (such as, layering new data
and process functions) existing services.
(4) Then, the CSN: cloud service broker registers the customized service in the product
catalogue.
(5) Finally, through workspace, the CSN: cloud service broker notifies description of the
customized service to the CSC so that the CSC determines whether to use the customized
service or not.
Roles/sub-roles CSP, CSN: cloud service broker, CSC

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