Page 161 - Cloud computing: From paradigm to operation

Framework and requirements for cloud computing 1

Appendix I

Use cases of cloud service brokerage
(This appendix does not form an integral part of this Recommendation.)

Table I.1 – A general use case for cloud service brokerage

Title A general use case for cloud service brokerage.

Description (1) A CSP determines to sell cloud services though a CSN: cloud service broker and accesses
a workspace operated by the CSN: cloud service broker such as a web portal by using
an authorized account.
(2) The CSP registers cloud service list to a product catalogue of the CSN: cloud service
broker though a user interface of the workspace.
(3) A CSC accesses the workspace by using an authorized account to find and use a cloud
service through the CSN: cloud service broker.
(4) The CSC requests a cloud service with service requirements to the CSN: cloud service
broker. Then, the CSN: cloud service broker searches the best-matched cloud service
out of the CSN: cloud service broker's product catalogue.
(5) The CSN: cloud service broker notifies the searched result and suggests detailed cloud
service conditions to the CSC. Once the CSC agrees with the suggested condition, the
CSN: cloud service broker makes a contract with the CSC for brokering a cloud service.
(6) On behalf of the CSC, the CSN: cloud service broker requests to launch a cloud service
to the CSP who can accommodate the service requirements.
(7) The requested CSP launches a cloud service according to the service requirements
(8) The CSP informs on a launch of the cloud service and provides information for accessing
the cloud service such as service access point, ID and password to the CSN: cloud service
broker.
(9) The CSN: cloud service broker forwards the access information to the authorized CSC.
(10) Using the access information, the CSC accesses and utilizes the launched cloud service.
Roles/sub-roles CSP, CSN: cloud service broker, CSC

Figure

Pre-conditions The CSP is a member of the CSN: cloud service broker and has an account for accessing CSB
(optional) workspace.
The CSC is a member of the CSN: cloud service broker and has an account for accessing CSB
workspace.
Post-conditions The CSN: cloud service broker monitors status of the brokered service to comply with the
(optional) contracted service agreement.

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