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Separation and cloud security
Deployment models and service models
When assessing the separation measures of a given cloud service, there are two factors determining your security and assurance requirements: The deployment model and the service model.
We have isolated three deployment models: public cloud, community cloud and private cloud deployments.
And three service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service(SaaS).
We’ll look at deployment models first, then move on to consider the separation requirements of the various service models. The concluding section summarises the risks associated with each of the service models.