The term Software as a Service first emerged in the year 2000 and can be defined as a means of providing services of remote access to software where both the software and the hardware components are hosted by the SaaS vendor (Torbacki, 2008).
Introduced in 1999 by (Bennett et al., 2000) as being an upcoming shift towards service-orientation and virtual market places; specifically speaking to the Internet age, and the dramatic effect it has on organisations in terms of producing agile and dynamic systems, it is stated that software can no longer be produced as a single system but rather as a family of systems. This alludes to the SOA architecture which in its simplest terms can be viewed as a “family of systems” as each service forms modular representation of the whole system.In the SaaS model, the vendor ensures the security and isolation of data for each software application instance.
There however distinct facets of the SaaS model that identify whether a system is a true implementation, as quoted by Patrick Grady, CEO of Rearden Commence “If you don’t have a single-instance, multitenant, on-demand, pure SOA-based platform, then it’s all crap and the customer will not receive any of the advertised benefits” (Deyo, 2008). In addition, the system must be accessible via the Internet, using any web browser eg. FireFox, Opera, Microsoft Internet Explorer and operating platform (Deyo, 2008).
The reason why he may quantify it so explicitly could be because SaaS is often compared to a similar model called ASP (Application Service Provider).The ASP model simply hosted application solutions with a provider but with no underlying changes to their systems and the hosting infrastructure(Kaplan, 2006). This resulted in the ASP’s becomi...
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...or Web-Based Enterprise Software,
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ERP stands for Enterprise Resources Planning. ERP is a term used for software that controls whole organizations different departments. SAP is the world leader in ERP systems followed by Oracle.
Basically, a Browser/Server (B/S) model is adopted in the system design where nearly all computing load is located on the server side, while the client side is only responsible for displaying. In this project, SOA is used to facilitate data communication and interactive operations for the reason that each web service is an independent unit in SOA. The general structure of the web-based UMS using SOA is described as follows (Figure 2). In Figure 2, the server side is composed of GIS web service providers, an image cache server, a web server and a firewall.
ERP Information Center. Retrieved from: http://www.eresourceerp.com/ERP-benefits.html Wallace, T. F., & Kremzar, M. H. (2001). ERP : Making It Happen: the Implementers' Guide to Success with Enterprise Resource Planning. New York:
...sion and ownership of the software. SaaS model eliminates the need of software installation on individual computers which makes it easy for application rendering and allow subscribers to only pay for the amount of the service they have consumed (Ganesan, Sarkar & Tewari, 2012). SaaS is based on the multi-tenant architecture, the software functionality is delivered as a set of distributed services (Buxmann et al., 2008). The service provider has one instance of the application which all customers’ access. It is an online delivery of software which business signup to use software functionality hosted by a service provider (Dubey & Wagle, 2007). This addresses the short comings of the hosted model and enable the realisation of economies of scale as only one instance of the application is maintained which significantly reduces the application overhead cost to minimum.
At the moment, Enterprise resources planning (ERP) systems had become important systems in the modern business world. The meaning of ERP itself is an integrated software package composed by a set of standard functional modules (production, sales, human resources, finance, etc.) developed or integrated by the vendor that can be adapted to the specific needs of each customer (Esteves et al. 2000).
as a Service) , development platforms (Platform as a Service) , applications (Software as a
Motiwalla, L., Thompson, J. (2011). Enterprise Systems for Management 2nd Edition. Upper Saddle River, NJ: Pearson.
Wikipedia (2014) defines software as a service as, “a software delivery mode in which software and associated data are centrally hosted on the cloud by independent software vendors or application service providers.” However, SaaS originates from SOA, a service-oriented architecture or form of grid computing (McLellan, 2013). SOA is an architectural platform that combines businesses as linked tasks or services (IBM, n.d.). Then, in the 90’s, application service providers gave businesses hosting services and application management while reducing costs from central administrators and solution providers (Wikipedia, 2014). When ASP’s began, they worked to manage and host independent software vendors, but SaaS vendors manage their own software (Wikipedia, 2014). Today’s SaaS relies on the internet, whereas i...
Tech Giant firms like Google, Microsoft, Amazon, Apple, Samsung and IBM have invested billions of resources ($) to provide their client IT services that are hosted on the internet, the common ones being Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service and Storages as a Service (STaaS). These are often marketed as efficient and cheap solution which will help one to reduce their overhead cost. This paradigm shift, has raised concerns in the loss of control over data as well as privacy and security. The idea of handing over important data to another client, worries many.
Over the past several years the term cloud computing has become common in homes and organizations alike. Cloud computing can be defined as a pooled set of computing resources that are furnished via the internet. There are three types of cloud services typically available, these services are Platform as a Service (PaaS), Infrastructure as a Service (IaaS), and Software as a Service (SaaS). Organizations can benefit greatly from cloud services because they eliminate the need to buy and manage physical resources. Although such an action cuts cost it leaves organization victim to the vulnerabilities and threats that exist in cloud computing. Throughout this paper I will discuss the vulnerabilities and threats that come along with the adoption of cloud computing. In addition, I will discuss standards and policies that effectively manage the risk associated with cloud computing.
- Scheer, A, Habermann, F, 2000, "Making ERP a success", Communications of the ACM, 43 , 3, 57-61.
described the ERP system as packaged (but customisable) software applications, which manage data from various organizational activities and provide a fully integrated solution to major organizational data management problems. They provide for both the core administrative functions, such as human resource management and accounting, as well as integrated modules which can be selected to support key business processes, such as warehousing, production and client management.
When you think about, it shouldn’t a business have the same kind of single point of control? Enterprise Resource Planning Software provides the level of oversight and control that is absolutely necessary for you, as a manager or owner, to make sure that all of your resources are all working towards the same goal. The hard part is choosing an ERP system that works for your company. No two manufacturers run exactly the same way, and similarly no two ERP systems run exactly the same way. So it’s important to research the product and the vendor to make certain that you select the right system for your business. You’ve got to have a system that fully integrates all aspects of running your manufacturing business, offers advanced features and options but is intuitive and easy to use so employees can grasp hold quickly, and adapts to the way you do business rather than forcing you to adapt to the software.
ERP systems cost may directly affect on the point that the purchasing of the license is the only main implementation cost, but in reality if we check the whole scenario it is twice or thrice the cost of software license While small and large companies fit into the interval suggested by Bingi, Sharma, and Godla, (1999) for software license, the percentage in mid-sized companies was significantly higher.If we talk about the cost of hardware it is viewed that the organization with the preinstalled IT department invest less amount by 25 % as compared to other companies without IT setup as they also spend hardware cost (Mabert, Soni, and Venkataramanan (2001a).If hardware cost is removed then only difference between big and small organization the percentage of the software and its license.
Saas is the model in which an application is hosted as a service to customers who access it via the internet. E.g. Google docs, salesforce.com, CRM, ERP, email, social networking.