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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]
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 ...
Public PaaS is derived from software as a service (SaaS), [17] and is situated in cloud computing between SaaS and infrastructure as a service (IaaS). [1] SaaS is software hosted in the cloud so that it does not reside or run on customer computers. IaaS provides virtual hardware from a provider with adjustable scalability. [1]
The drawbacks of DaaS are generally similar to those associated with any type of cloud computing, such as the reliance of the user on the service provider's ability to avoid server downtime from terrorist attacks, power outages or natural disasters. A common criticism specific to the DaaS model is that when compared to traditional data delivery ...
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 ...
"X as a service" (rendered as *aaS in acronyms) is a phrasal template for any business model in which a product use is offered as a subscription-based service rather than as an artifact owned and maintained by the customer. Originating from the software as a service concept that appeared in the 2010s with the advent of cloud computing, [1] [2] the template has expanded to numerous offerings in t
Hybrid SaaS (Software-as-a-Service) and hybrid cloud are related but distinct concepts in the realm of cloud computing. Hybrid SaaS refers to a deployment model where a software application is delivered as a service and combines elements of both on-premises and cloud-based infrastructure. In this model,
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.