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... ... middle of paper ... ...or Web-Based Enterprise Software, HURBEAN, L., & FOTACHE, D. (2009). Battle of the enterprise 2.0–the quiet revolution in software industry. Kaplan, J. (2006). Software-as-a-service myths. BusinessWeek Online, April, 17 Karnouskos, S., Baecker, O., De Souza, L. M. S., & Spiess, P. (2007). Integration of soa-ready networked embedded devices in enterprise systems via a cross-layered web service infrastructure. 12th IEEE Conference on Emerging Technologies and Factory Automation, 293–300. Lucas, K., Adrian, M., Wang, R., & Krauss, D. (2007). The state of enterprise software adoption in europe. Robert Jacobs, F., & Ted'Weston, F. (2007). Enterprise resource planning (ERP)--A brief history. Journal of Operations Management, 25(2), 357-363. Torbacki, W. (2008). SaaS–direction of technology development in ERP/MRP systems. Archives of Materials Science, 58, 58.
The second cloud infrastructure that I would like to describe is the Software as a Service model, which is also known as SaaS. The SaaS model provides a broad scope of devices that are able to access software programs from one company’s applications. System as a service was developed to run applications from any device or user that has permission from the host. The book states, “Online email services, such as Gmail and Yahoo!, are good examples of SaaS” (Jill West, 2016). Cengage Learning made the Software as a
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.
...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.
Motiwalla, L., Thompson, J. (2011). Enterprise Systems for Management 2nd Edition. Upper Saddle River, NJ: Pearson.
...l for enterprise resource planning implementation¡±, Proceedings of the 7th European Conference on Information Systems, Vol. 1, pp. 273-97.
as a Service) , development platforms (Platform as a Service) , applications (Software as a
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.
• “An Enterprise Resource Planning (ERP) system is a software system for business management, supporting areas such as planning, manufacturing, sales, marketing, distribution, accounting, finance, human resource management, project management, inventory management, service and maintenance, transportation, and e-business”. Haag, Cummings, Phillips, S, M, A (2007). Management of Information Systems. New York, NY: The McGraw-Hill Company Inc.
In order to be more productive and accurate, most of the companies depend on use of technology, with the help of enterprise resource planning (ERP) systems. (Olsen, and Saetre, 2007).
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.