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2. Cloud computing - Wikipedia

   en.wikipedia.org/wiki/Cloud_computing

   Cloud bursting is an application deployment model in which an application runs in a private cloud or data center and "bursts" to a public cloud when the demand for computing capacity increases. A primary advantage of cloud bursting and a hybrid cloud model is that an organization pays for extra compute resources only when they are needed. [ 68 ]

3. Software as a service - Wikipedia

   en.wikipedia.org/wiki/Software_as_a_service

   Software as a service (SaaS / s æ s / [1]) is a cloud computing service model where the provider offers use of application software to a client and manages all needed physical and software resources. [2]

4. Cloud computing architecture - Wikipedia

   en.wikipedia.org/wiki/Cloud_computing_architecture

   Cloud computing architecture refers to the components and subcomponents required for cloud computing.These components typically consist of a front end platform (fat client, thin client, mobile), back end platforms (servers, storage), a cloud based delivery, and a network (Internet, Intranet, Intercloud).

5. Platform as a service - Wikipedia

   en.wikipedia.org/wiki/Platform_as_a_service

   Platform as a service (PaaS) or application platform as a service (aPaaS) or platform-based service is a cloud computing service model where users provision, instantiate, run and manage a modular bundle of a computing platform and applications, without the complexity of building and maintaining the infrastructure associated with developing and launching application(s), and to allow developers ...

6. Infrastructure as a service - Wikipedia

   en.wikipedia.org/wiki/Infrastructure_as_a_service

   Services can be scaled on-demand by the user. According to the Internet Engineering Task Force (IETF), such infrastructure is the most basic cloud-service model. IaaS can be hosted in a public cloud (where users share hardware, storage, and network devices), a private cloud (users do not share resources), or a hybrid cloud (combination of both).

7. IT as a service - Wikipedia

   en.wikipedia.org/wiki/IT_as_a_service

   According to The NIST Definition of Cloud Computing, [3] there are three service models associated with cloud computing: infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). The concept of ITaaS as an operating model is not limited to or dependent on cloud computing.