Cloud Computing And Its Various Models

There are a multitude of benefits in the utilization of cloud computing. A primary function of cloud computing is the availability of universal access to files throughout any given level of an organization. As documents and other database driven information are stored off-site, there is often a reduction of costs, due to the minimization of on site hosting software and hardware alike. The many reasons to utilize cloud computing are evident, however, as all other technological advantages, there are also a large variety of companies that offer these services with different benefits, costs and application choices. Some of the most recognized corporations offer cloud computing such as icloud, Google Apps, Amazon Cloud Drive, and many others. All organizations offer

Cloud computing offers services to users based on on-demand self-service, broad network access, measured service, resource pooling and rapid elasticity; These characteristics promise a faster time for implementation, lower cost, superior scalability and a better end user satisfaction. These services are delivered in models known as Software As A service (SaaS), Platform As A Service (PAAS), and Infrastructure As A Service (IAAS). The first layer which is the Software As A service (SaaS) is the layer in which software applications are delivered to end users. Below is the Platform As A Service (PAAS) layer which offers a platform on which applications can be developed. The lowest layer is the Infrastructure As A Service (IAAS) layer, in this layer the physical servers and network infrastructure is offered as a service. These services can be deployed throughout the internet (Public Cloud Computing), on the intranet infrastructure, (Private Cloud Computing), in a shared community of private networks (Community Cloud Computing), or a hybrid of both (Hybrid Cloud Computing). The service deployment models are [8]:

SaaS – Software as a Service – Users on the service are given access to the application’s software and databases, cloud providers manage the infrastructure and platforms that run the application. “On demand”.

As we all likely already know, there 's a lot of hype associated with cloud computing. Cloud computing encompasses diverse models and technologies. It is not just a paradigm or a concept that is forced into the enterprise by their thought leaders.

As we all likely already know, there 's a LOT of hype associated with cloud computing. Cloud computing is a huge topic. It encompasses diverse models and technologies, even though

SAAS (Software as a service) - Allows users to run existing online applications. Off-the-shelf applications are accessed via internet.

The second cloud computing model is Platform as a service (PaaS), which gives customers all the tools necessary to “support the complete lifecycle of building and delivering web-based (cloud) applications” (IBM). The third cloud computing model is Infrastructure as a service (IaaS). Infrastructure as a service permits customers to use the computing power, storage and the network resources of cloud firm’s server systems. Most cloud providers like Amazon web service have you only “only pay for how much you consume” and companies are signing up in record numbers (Amazon Web Service). For many companies, it would be a no brainer to try and utilize whichever cloud model applies to their company. Since all three clouds computing models have the key benefits of allowing customers to avoid the cost and intricacy of purchasing and managing hardware and software systems, that the projected revenue for cloud services in 2015 is $177 Billion (Contegix).

Cloud computing is a fairly new technology; it is separated into three separate categories. The first is Infrastructure as a Service (IaaS) this service is mainly used by companies to cut the cost of buying computer hardware such as servers , they also save on maintenance cost since the virtual servers is maintained by the company that rents them [1]. The second category is Software as a Service (SaaS) this service deals with providing software which is usually rented, this allows users to have multiple users whereas normal software limits the amount of users [1]. The last category Platform as a Service (PaaS) is used as a tool to develop software [1]. All these services offered by Cloud Computing are done virtually where you access

The contents of this report will include the history of Cloud computing, the main trends within Cloud computing, the advantages and disadvantages of Cloud computing and the future of Cloud computing.

The cloud aims to cut costs, and help the users focus on their core business instead of being impeded by IT obstacles Cloud computing is so named because the information being accessed is found in the "clouds", and does not require a user to be in a specific place to gain access to it. The services are offered from data centres all over the world, which collectively are referred to as the "cloud." The idea of the "cloud" is to simplify the huge network connections and computer systems involved in online services. Cloud computing is a computing model, not a technology. In this model of computing, all the servers, networks, applications and other elements related to data centres are made available to IT and end users. Cloud computing is a type of computing that is comparable to grid computing. It relies on sharing computing resources rather than having local servers or personal devices to handle applications.

This project is going to discuss about the Cloud Computing and its application in business. To briefly describe what cloud

Technically, Cloud is as a term of a platform, it provides, configures and reconfigures servers while the servers could be virtual machines and physical machines. Additionally, Cloud is also as a term of applications that are described as to be accessible over the internet based on the support from powerful servers and large data centers. Therefore, Cloud is quite different from traditional computing paradigms because of its scalable. Cloud is an abstract entity to supply different levels of services. Shown by figure 1, Cloud is typically providing three types of services: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS).

SaaS is an application level cloud service that provides interface software and database. User simply accesses the software running on the back-end server of the cloud clients such as web browsers, emulators and mobile web browser, and use the services. The best example of this services is a web-based email service. Users are able to send or receive emails from web browser remotely without installing or running email software on his/her device. The essential software are running on the Cloud Computer which allow user to access the desire resources from any supported devices.

Software as a Service (SaaS) - It is a model of programming organization whereby those supplier. Licenses a requisition of the clients to use likewise an administration ahead request. That proficiency furnished of the wind clients may be to utilize that provider are requisitions running with respect to a cloud foundation. Those requisitions are approachable starting with different customer gadgets through a dainty customer. Interface for example, such that a web program.

applications SaaS,as discussed above. The second component of the service platforms - is the associated dedicated hosting, that, in fact, allows you to