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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] SaaS is usually accessed via a web application.
The NIST's definition of cloud computing defines Software as a Service as: [2] The capability provided to the consumer is to use the provider's applications running on a cloud infrastructure. The applications are accessible from various client devices through either a thin client interface, such as a web browser (e.g., web-based email), or a ...
On-premises software is sometimes referred to as "shrinkwrap" software, and off-premises software is commonly called "software as a service" ("SaaS") or "cloud computing". The software consists of database and modules that are combined to particularly serve the unique needs of the large organizations regarding the automation of corporate-wide ...
Several back-office software providers offer cloud-based services that simplify and streamline back-office management functions, particularly for companies with multiple locations. These simplified platforms have given companies an alternative to business process outsourcing (BPO), which involves handing over the management of a company's back ...
Blockchain as a service (BaaS) is an enterprise-level software service [13] that allows businesses to use cloud-based solutions to build, host and use their own blockchain apps, smart contracts and functions on the blockchain infrastructure developed by a vendor. Just like the growing trend of using software-as-a-service (SaaS) [14]
It involves the integration and orchestration of resources from multiple cloud environments, including a private cloud (on-premises infrastructure) and at least one public cloud provider, such as Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform. In summary, the main difference between hybrid SaaS and hybrid cloud lies in ...
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 ...
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.