On-Premises Application Delivery Model

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Relentless innovation in the way businesses apply computing power to automate business processes has translated into incredible gains in just a few short decades. These innovations have had positive influence in the models used by businesses for delivering software applications to their users. The software application delivery models have evolved over the years starting with the on-premises application delivery whereby application software was installed and operated on a computer located on the premises of the software licensee, rather than at a remote facility. This is the model that drove and defined the first generation of business application delivery which was used before the widespread availability and affordability of the Internet. On-premises …show more content…

The increased use of the internet led to the introduction of another application delivery model named the hosted software model which used the internet as the medium of delivering software application to end users (Sridhar, 2009). In the hosted model, the application software physically resides at a third party (called the application service provider) data centre where it is operationally managed by the service provider (Papazoglou, 2003) on behalf of the licensee. Although the hosted model addressed some of the drawbacks of the on-premises delivery model such as lack of remote access to the application, it has faced major problems which resulted in a significant increase in the application overhead cost because each business accessed its own dedicated instance of the hosted application (Goepfert, 2002). This meant that each hosted application instance needed to be managed and maintained separately from other instances. The individual management of application instances became a major weakness of the model because business were unable to achieve economies of scale (Dubey & Wagle, 2007), as special attention was paid to each instance and hence the increase in the application overhead cost …show more content…

The development of Web and its infrastructure has posed new challenges and opportunities to software providers, especially those that are increasing their focus of selling software application as a service. Intuitively the advancement in the IT and business environment lead to the evolution of Cloud computing that allowed IT resources to be shard and accessed over the internet as services rather than products to the end users (Ashta & Patel, 2010). In 1999 a consortium of Software Engineering Researchers from the University of Durham Keele University and UMIST known as the Pennie Group predicted that the future of the software lies in not just developing a new architectural style based upon the constructional forms but changing the way the functionalities are delivered to the users (Gupta & Varshapriya, 2014). This software delivery paradigm shift lead to rise of new software business known as Software as a Service (SaaS) (Ashta & Patel,

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