Page 41 - Cloud computing: From paradigm to operation

Framework and requirements for cloud computing 1

Use case
Requirements – Security
– Service availability, service reliability and quality assurance
– Service access
– Interoperability
– Regulatory aspects
– Accounting and charging

Use case

Name Use case use service
Abstract A CSC or a CSN uses a published service. According to the agreement of the SLA, the user
invokes the cloud service.
Actors CSC, CSN
Pre-conditions – The service to be used has already been published by a CSP (UC-PS).
(optional) – The CSC or the CSN has been authenticated.
Post-conditions – The used service should be kept available during the whole invocation.
(optional) – The SLA should be met for service use.
Requirements – Service life-cycle management
– Security
– Portability
– Interoperability
– Regulatory aspects
– Service availability, service reliability and quality assurance
– Service access
– Accounting and charging

I.2 IaaS general use case

Use case

Name IaaS general use case
Abstract CSC uses IaaS services including computing, storage and network capabilities to deploy and
run arbitrary applications.
Roles CSC, CSP

Figure

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