Page 50 - Cloud computing: From paradigm to operation

1 Framework and requirements for cloud computing

Use case
Pre-conditions – ① A CSP builds a cloud infrastructure with cloud resources including compute, storage and
(optional) network resources.
– ②,③ The CSP allocates and configures related compute, storage and network resources in
the cloud infrastructure needed for deploying any kind of cloud services through resource
orchestration functions.
– ④ The CSP publishes the deployed cloud services in the catalogue of the cloud service
portal.
– ⑤ A CSC accesses the cloud services published by the CSP through service portals or
service interfaces which are protected by appropriate security mechanisms.
– ⑥ Related cloud resources and capabilities have been invoked to respond to the CSC's
access and interaction.
Post-conditions – ⑦ The CSP manages and monitors pooled compute, storage and network resources in the
cloud infrastructure.
Requirements – Resource provisioning
– Resource abstraction and control

I.11 Trusted cloud service use case

Use case

Name Trusted cloud service use case
Abstract The CSP provides trusted cloud service which satisfies a set of requirements and
transparency for governance, management and security to provide CSC confidence in using
the cloud service.
Roles CSC, CSP

Figure

Pre-conditions – The CSC requests a trusted cloud service:
(optional) • The CSP1 offers the same cloud services as CSP2, but CSP2 does not meet trusted
cloud service requirements.
• The CSC gets effective cloud service information from CSP1.
• The CSC does not have effective cloud service information from CSP2.
– The CSP1 negotiates a cloud service agreement with the CSC before providing a cloud
service, while CSP2 does not.

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