The Cloud Computing Model

This research paper tackles the issues that faces Cloud Computing today and gives the experts and industry’s point of view on the matter. The aspects explored are the significant industry questions that have risen about the use of Cloud Computing, business value, organization impact, adaptability, limitations, initial cost of implementation, and the severe business security risks

The “cloud” provides rapid access to flexible and low cost IT resources; people can access as many resources as the need, almost instantly, and only pay for what they use. There are six advantages and benefits that AWS is advertising, such as pay for how much you consume; achieve higher economies of scale which translates into lower pay as you go prices; eliminate guessing on your infrastructure capacity needs; increase speed and agility; stop spending money on running and maintaining data centers; and provide lower latency and better experience for your customers simply and at minimal cost. Cloud computing has three main types that are commonly referred to as Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). IaaS contains the basic building blocks for cloud IT and typically provide access to networking features, computers, and data storage space. Also, it provides with the highest level of flexibility, and management control over your IT resources and is most similar to existing IT resources that many IT departments and developers are familiar with today. PaaS remove the need for organizations to manage the underlying infrastructure and allow you to focus on the deployment and management of your applications; this helps to be more efficient and not to worry about resource procurement, capacity planning, software

(2) Utility Computing - offers storage and virtual servers that an organization can access on demand.

This coordinates elements supporting high adaptability and multi-occupancy. In addition, distributed computing minimizes the capital consumption. This methodology is gadget and client area free. As indicated by the not at all like sorts of administrations offered, distributed computing can be considered to comprise of three layers. IaaS or Infrastructure as a Service (IaaS) is the most minimal layer that gives fundamental base bolster administration. PaaS - the Platform as a Service (PaaS) layer is the center layer, which offers stage arranged administrations, other than giving the earth to facilitating client 's applications. SaaS - Software as a Service (SaaS) is the highest layer which includes a complete application offered as administration on interest. SaaS guarantees that the complete applications are facilitated on the web and clients use them. The installment is being made on a pay-per-use model. It takes out the need to introduce and run the application on the client 's nearby PC, in this manner mitigating the client 's weight for programming consideration. In SaaS, there is the Divided Cloud and Convergence intelligibility instrument whereby each information thing has either the "Read Lock" or "Compose Lock". Two sorts of servers are utilized by SaaS: the Main Consistence Server (MCS) and Domain Consistence Server (DCS). Reserve rationality is

A hybrid Cloud Deployment model with a combination of Public, Private and Community models will be used. The Cloud Service Delivery model will be a combination of SaaS, PaaS and IaaS to satisfy the requirements of the multiple business units within the organization, customers, and suppliers resulting in a cost reduction through optimized and efficient computing

The public cloud is a deployment model where cloud services are provided over a public network, such as the internet, by a third-party provider. Examples of public cloud services include Dropbox, Gmail and Twitter. By definition, most SaaS applications operate under the public cloud deployment model. One of the primary advantages of public cloud is its attractive pricing model. The organisation is typically charged a subscription fee for access to the cloud services, paying only for the number of users required, this removes the need for business to manage software licences (Savvas [Online], 2014). However, security conscious organisations requiring a SaaS solution may opt for a private cloud segregated from public networks. There are obvious security concerns involved in exposing a SaaS application to a public network. However, there are concrete steps an organisation can take to reduce the risk incurred with public cloud deployments. Many public cloud SaaS providers offer two-factor authentication, requiring an additional level of verification before the user’s credentials are accepted. This is typically achieved using an authentication code in the form of a text message sent to the user’s registered mobile number. Furthermore, organisations should develop and maintain a culture of cyber security, enforce best practices such as creating strong passwords and training staff in phishing awareness.

On-demand services. Cloud computing resources and services can be dispatched to users on demand. Users are able to customize and personalize computing environments, for instance, network configuration and software installation. On-demand services are able since the users have administrative privileges.

There is wide range of services that could be provided by cloud providers. Based on blabla, there are 3 models of cloud services that widely popular. They are Infratructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). IaaS provides for fundamental resource for computing such as processing, servers, storage, networks and manage its physical infrastructures but costumers have control for their OS [fn1]. PaaS provides design, tools or Environment with IDE. It is usually used by software developer who wants to run their application over internet. SaaS delivers ready-use software over internet or we can called as web-based software. Cloud users neither have to maintain platform or infrastructures. These days this services gain money from advertising or user list sales for example Google mail service so users can enjoy it free.

There are various types of cloud services that are available; Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Each of these services provides a unique service to an organization and should be implemented when there is a competitive advantage. For instance, SaaS, is a service that provides a software which I deployed over the internet. It is designed for end-users, through a subscription, which is generally “pay-as-you-go.” And with

Cloud computing increased technology to run business rapidly, rather than running the applications on a computer or a LAN, they run on a shared multi-tenant. It's self-service oriented to use any application that runs within the cloud, simply logged in, customize it in step with the client wants, and start exploring it. Additional Businesses square measure running all types of applications within the cloud today, like CRM, accounting, HR, and customized applications. Cloud-based applications value less, since the client doesn’t get. To get all the hardware and software system, facilities, or intensive configuration and maintenance of a full technology stack, to run them. Cloud provides additional scalable, additional reliable and safer

Organisations are progressively considering the change of on premise base collaboration and communication tools to a cloud office system such as Microsoft Office 365 or Google Apps for Work.

Cloud computing provides three important types of services in the cloud environment: Software as a service (SaaS), Platform as a

Cloud computing, as defined by wikipedia, creates a virtual computer, which is anonymous and is networked to a series of servers across the globe, known as the “cloud”. The “cloud” harnesses underutilized processing power of all computers in a network, to create supercomputing power . By connecting networks of large groups of servers, that run low cost consumer PC technology, a shared IT infrastructure (the “cloud”) is created. Thus rather than storing applications, databases, emails and file services on a personal computer or server, a business or an individual can store in the “cloud”. In cloud computing the user rents server space or access to software from a cloud service provider and connects over the internet. There are four models of cloud computing. Firstly, a private cloud where services and infrastructure are maintained and managed by the customer/user. Secondly, a community cloud whereby several organisations share access to a private cloud. Thirdly, a public cloud where services are stored off site and accessed over the internet. The storage is managed by an external organisation like Google or Microsoft. Finally, the hybrid cloud which uses both private and public cloud models. Cloud services include SaaS (software as a service) where the vendor uses the web to deliver applications; cloud platform services (PaaS) to develop or customise cloud components of software; cloud infrastructure services (Iaas) which are self serve models for managing remote data

Cloud computing customers do not need to own the physical infrastructure; rather they use the resources from a third-party provider on rental basis. This helps them to avoid huge effort for the setup of the infrastructure. The End-user consumes the resources as a service and pay only for resources that they consume. Most cloud computing infrastructure consists of

Cloud consumers directly use IT infrastructures (processing, storage, networks and other fundamental computing resources) provided in the IaaS cloud.