Actors in Cloud Computing are as fllow:


S. N.




Cloud Consumer

A person or organization that maintains a business relationship with, and uses service from, Cloud Providers.


Cloud Provider

A person, organization, or entity responsible for making a service available to interested parties.


Cloud Auditor

A party that can conduct independent assessment of cloud services, information system operations, performance and security of the cloud implementation.


Cloud Broker

An entity that manages the use, performance and delivery of cloud services, and negotiates relationships between Cloud Providers and Cloud Consumers.


Cloud Carrier

An intermediary that provides connectivity and transport of cloud services from Cloud Providers to Cloud Consumers.

Interactions among the actors

A cloud consumer may request cloud services from a cloud provider directly or via a cloud broker. A cloud auditor conducts independent audits and may contact the others to collect necessary   information.

Cloud carriers provide the connectivity and transport of cloud services from cloud providers to cloud consumers.

A cloud provider participates in and arranges for two unique service level agreements (SLAs), one with a cloud carrier (e.g. SLA2) and one with a cloud consumer (e.g. SLA1).

A cloud provider arranges service level agreements (SLAs) with encrypted connections to ensure the cloud services are consumed at a consistent level according to the contractual obligations with the cloud consumers.

In this case, the provider may specify its requirements on capability, flexibility and functionality in SLA2 in order to provide essential requirements in SLA1.

A cloud service, a cloud auditor conducts independent assessments of the operation and security of the cloud service implementation. The audit may involve interactions with both the Cloud Consumer and the Cloud Provider.

Usage Scenario for Cloud Auditor