―CLOUD.....CLOUD .....‖ become the buzzwords for the research field. The cloud has been provided by the service providers like Microsoft, Google, Rackspace, and IBM. These services are given to the users for pay-per-use concept. The term ―Cloud computing‖ was first coined after the thought that services and applications are deployed into the internet ―cloud‖. It is not the word something got in...

The topic of Cloud Computing has gained in prominence in recent years. Our motivation to study this topic is inspired by observing many differences in opinion on aspects of Cloud Computing. We have a particular interest in exploring the drivers and barriers for Cloud adoption within organisations. This resulted in a vendor perspective research project with seven multinationals. In this paper, w...

Cloud computing is an amazing technology, which provides services to users on-demand. Since there are many providers in the cloud, users get confused in selecting the optimal cloud service provider. To overcome this limitation, federated cloud management architecture was proposed. There is no standard framework for ranking the cloud service providers in the existing federated cloud model. The p...

People’s computing lives are moving into the cloud, making understanding cloud availability increasingly critical. Prior studies of Internet outages have used ICMP-based pings and traceroutes. While these studies can detect network availability, we show that they can be inaccurate at estimating cloud availability. Without care, ICMP probes can underestimate availability because ICMP is not as r...

Cloud Computing is a new trend emerging in IT environment with huge requirements of infrastructure and resources. Load Balancing is an important aspect of cloud computing environment. Efficient load balancing scheme ensures efficient resource utilization by provisioning of resources to cloud user’s on-demand basis in pay-as-you-say-manner. Load Balancing may even support prioritizing users by a...

Research goals: determine particularities of using cloud services in English communicative competence forming process and develop the model of distance learning system (DLS) and cloud services interaction that improves the quality of the learning process. Research objectives: to identify, describe and develop methodological features of the model of distance learning system and cloud services in...

Cloud computing has been gaining increased popularity among companies for a couple of years. Low upfront costs and the enormous elasticity make it an attractive alternative to in-house IT solutions. However, most companies still tend to overprovision their IT infrastructures induced by the buffering behavior to avoid violations of service level agreements. The introduction of dynamic scaling in...

Cloud computing has not resulted in a fundamental change to the underlying operating systems. Rather, distributed applications are built over middleware that provides high-level abstractions to exploit the cloud’s scale and elasticity. This middleware conjoins many general purpose OS instances. Others have demonstrated that a new operating system built specifically for the cloud can achieve inc...

As the demand for cloud computing continues to increase, cloud service providers face the daunting challenge to meet the negotiated SLA agreement, in terms of reliability and timely performance, while achieving costeffectiveness. This challenge is increasingly compounded by the increasing likelihood of failure in largescale clouds and the rising cost of energy consumption. This paper proposes S...

Elasticity is a key property of cloud computing environments and one of the features which distinguishes this paradigm from other ones. An elasticity metric could be used to define and to monitor Service Level Agreements (SLAs), to compare and to benchmark different cloud providers or to improve provisioning and management decisions in real time if it could be measured with some simple procedur...