Once a cloud is established, how its cloud computing services are deployed in terms of business models can differ depending on requirements.
The primary service models being deployed are commonly known as:
Software as a Service (SaaS) — Consumers purchase the ability to access and use an application or service that is hosted in the cloud. A benchmark example of this is Salesforce.com, as discussed previously, where necessary information for the interaction between the consumer and the service is hosted as part of the service in the cloud.
Platform as a Service (PaaS) — Consumers purchase access to the platforms, enabling them to deploy their own software and applications in the cloud. The operating systems and network access are not managed by the consumer, and there might be constraints as to which applications can be deployed.
Infrastructure as a Service (IaaS) — Consumers control and manage the systems in terms of the operating systems,applications, storage, and network connectivity, but do not themselves control the cloud infrastructure.Also known are the various subsets of these models that may be related to a particular industry or market.
The primary service models being deployed are commonly known as:
Software as a Service (SaaS) — Consumers purchase the ability to access and use an application or service that is hosted in the cloud. A benchmark example of this is Salesforce.com, as discussed previously, where necessary information for the interaction between the consumer and the service is hosted as part of the service in the cloud.
Platform as a Service (PaaS) — Consumers purchase access to the platforms, enabling them to deploy their own software and applications in the cloud. The operating systems and network access are not managed by the consumer, and there might be constraints as to which applications can be deployed.
Infrastructure as a Service (IaaS) — Consumers control and manage the systems in terms of the operating systems,applications, storage, and network connectivity, but do not themselves control the cloud infrastructure.Also known are the various subsets of these models that may be related to a particular industry or market.
