Cloud Computing is considered the latest buzzword in computing today. It describes a form of computing wherein services are accessed through the Internet on an as needed or pay-per-use basis. Some aspect of cloud computing is in use on a regular basis. Understanding this technology, its benefits, and underlying security risks are important for people in most of today’s technical areas. Because Cloud computing is still considered to be in its infancy, an introduction to cloud computing, defining its major components, with a focus on Software-as-a-Service (SaaS), is the foremost theme of this paper. There are three major elements of cloud computing - Software-as-a-Service (SaaS), Platform-as-a-Service (PaaS), and Infrastructure-as-a-Service (IaaS). Software as a Service (SaaS) is the process of remotely accessing software applications via the Internet circumventing the need to have the software physically installed on a local machine. Using information gathered from major technical books, magazines, and the Internet, my goal is to present a concise explanation of the platforms, its use, and the security concerns involved in its use.
Cloud Computing – Software-as-a-Service
Before we discuss Software as a Service (SaaS), an introduction to cloud computing is in order. The National Institute of Standards and Technology (NIST) defines cloud computing as “A model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction” (Mell, P., Grance, T., 2011).
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...uting. Having a strong security policy in place will help ensure the safety of software in a cloud environment. There are many advantages to using SaaS; the advantages include reduction in the time it takes to deploy applications, better productivity, lower licensing fees and the ability to have access to the most currently available software. A decision on when and how to institute Cloud Computing requires that all concerned stakeholders have a reasonable understanding of what they are investing in.
The disadvantages of using SaaS are important to understand also. Every application does not need to be ‘in the cloud’. Moving to the cloud may not be the best choice for all organizations. To effectively use cloud computing a working knowledge of the infrastructure, hardware, and platform needed to effectively support the use of SaaS is imperative.
The PaaS method cloud infrastructure has saved companies millions of dollars. One downfall that the PaaS structure has is that every company relies on the PaaS also relies upon the uptime of the vendor providing the service. If a vendor goes down then depending on how bad it is can put each company using their service at a potential financial loss.
As its core essences cloud computing is nothing but a specialized form of grid computing and distributing computing’s which various in terms of infrastructure , deployment, service and Geographic’s dispersion (Veeramachanenin, Sepetember 2015) the cloud enhance scalability, collaboration, availability , ability to adapt to fluctuation according to demand accelerate development work and provide optional for cost reduction and through efficient and optimized computing. (BH kawljeet, June 2015) cloud computing (CC) recently become as a new paradigm for the delivery and hosting of services our the internet. There are mainly three service delivery model Software as Service (SaaS) required software, operating system and network is provided or we can say in SaaS the customer can access the hosted software instead of installing it in local computer and the user can access these software through local computer internet browser (e.g web enabled E-mail ) the user only pay and the cloud service provider is responsible for management or control of mobile cloud infrastructure some of the company which provide such service are Google, Microsoft , Salesforce ,Facebook, etc…..Infrastructure as Service(IaaS)the cloud provider only provide some hardware resources such as network and virtualization is
...common risks and their mitigating techniques are: Unauthorized access to data centers, computer rooms, and wiring closets – this risk can be mitigated by applying policies, standards, procedures, and guidelines for staff and visitors to secure facilities. Servers must sometimes be shut down to perform maintenance – this can be mitigated by creating a system to tie servers, storage devices, and the network together and created redundancy to prevent down time on mission critical services. Server operating systems vulnerability – this can be mitigated by ensuring all server operating system environments are defined with the proper patches and updates. And lastly cloud computing virtual environments are not secure by default configurations – can be mitigated with setting up virtual firewalls and server segments on separate VLANs to help prevent failure in the network.
When they wanted to save photos online instead of on your personal computer, they are able to use “cloud computing” service. Cloud computing means that the transfer of computing data or information over the internet. Not just to keep data in your personal computer, they are able to save the data on internet server to open their data in any computer. In this report we will walk through about what is cloud computing, what kinds of model did cloud computing have, types of cloud computing, benefits of cloud computing, and security.
...Implementation of cloud systems can be implemented in stages with costs that coincide with usage. The ROI outweighs the issues or problems that could occur. Cloud computing gives a competitive advantage of being able to keep up with changes in technology without having the cost involved. Amazons cloud computing allowed companies like Ericsson to remain competitive and thrive.
Cloud computing is a model for enabling convenient, on demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. This cloud model promotes availability and is composed of five essential characteristics, three service models, and four deployment models.
...hey must be aware if someone attacks their data and information, so they must secure their cloud service.
The cloud computing allows the user to share the data, ranging from common word processing software to customized computer programs, from the same remote database. Cloud computing is also an attractive alternative for more storage capacity and disaster recovery.
Traditionally government and non-profit organizations and corporation were required to purchase, setup and maintain their IT infrastructure regardless of costs. However, CRM, PaaS, and SaaS models computing technology have become a critical shift in the way business organizations manage their Information Technology. The Development of Platform as a Service (PaaS) and Software as a Service application has allowed businesses and organizations the unlimited possibilities of virtually running their entire operations by outsourcing to this computing technology services. Therefore, PaaS and SaaS has become a major game changer in the messaging and communication Information technology service markets. It has significantly lower cost in IT operation, seamless integrating with existing IT systems and provided easy updates and upgrades to IT infrastructures that can be a very daunting
Cloud computing remains firm and has great potential for the future despite its disadvantages and the fact that it is still is a working progress. The number of users are constantly growing and bigger companies are starting to be interested, offering better and finer tuned services and solutions. The best thing to do is to hope that the advantages will further grow and flourish and the disadvantages will slowly disappear, since cloud computing seems to have made IT a little bit easier (Morris, 2011).
Business continuity. Protecting your data and system is one of the most important part of business continuity. In an event of natural disasters or accident, having data stored in the cloud ensures it being backed up and stored safely. Being able to access the data again allows the business to conduct business as per usual and reduce downtime and delays.
The fundamental idea behind a virtual machine is to remove the hardware of a single computer and make it a self-contained operating environment that behaves as it is a separate computer. Essentially, the virtual machine is software that executes an application and isolates it from the actual operating system and hardware. CPU scheduling and virtual-memory techniques are used so that an operating system can create the illusion that a process has its own processor with its own (virtual) memory. The virtual machine provides the ability to share the same hardware yet run several different operating systems concurrently, as shown in Figure 2-11.
Cloud computing is convenient and user-friendly. It offers benefits such as the ease of software maintenance. No CD is required to install the resources and users do not have to worry if their software is out of date. Servers and capacity planning are also not required with Cloud computing. It does not require any equipment outlay and you do not need to guard against obsolete hardware. Cloud computing applications can also be access anywhere on your computer or mobile. Redundancy and disaster planning is also taken care by your cloud provider. With all these benefits cloud computing has to offer, many businesses have started to use cloud computing today. However there is also bound to have disadvantages.
...s and end nodes change their behavior. Distributed in many cloud services application logic, allowing more centralized automation applications and smart. The rear end of the cloud computing system, a variety of computers, servers and data storage system to create the cloud computing services. I start reading those articles one by one. This article taught basics of cloud computing to the user who is not familiar with cloud computing system. The writer of this article tries to cover all the aspects of the cloud computing. Author tries to discuss all the logical, Front end and back end aspects of this latest technology in an innovative manner.
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.