The cloud computing paradigm encompasses several key differentiating elements and technologies, tackling a number of inefficiencies, limitations and problems that have been identified in the distributed and virtualized computing domain. Nonetheless, and as it is the case for all emerging technologies, their adoption led to the presentation of new challenges and new complexities. In this paper w...

As the civilization enters into the new millennium, the words of 19th century have suddenly taken a new meaning. The world is undergoing a remarkable technological change. The advancement of Internet along with the expansion of IT infrastructure at large level has revolutionized the way in which information and communication technologies are stored and disseminated, and is creating lasting impl...

The use of Information and Communication Technology (ICT) has good impact on performance of businesses. Keeping a successful implementation of e-business in mind, governments decided to use ICT in public affairs in order to improve the performance of public sector organizations in the form of providing best possible information and services to citizens, businesses and other governments. With th...

Computing Science addresses the security of real-life systems by using various security-oriented technologies (e.g., access control solutions and resource allocation strategies). These security technologies significantly increase the operational costs of the organizations in which systems are deployed, due to the highly dynamic, mobile and resource-constrained environments. As a result, the pro...

-The Cloud Computing is the new vision of computing utility, on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort or cloud provider interaction. Cloud computing technologies can be implemented in a wide variety of architectures, under different service and deployment models, and can coexist wit...

How wages and non labor income affect the decisions to work and hours of work are critical for understanding the work disincentive effects of taxes and transfers, and the attendant design of optimal income tax and transfer schemes. I use data from the Current Population Survey and variation induced by fundamental reforms to the U.S. tax and welfare systems in recent decades to estimate the labo...

Cloud computing paradigm has attracted a lot of attention in the last five years as coming during an economic crisis with an appealing offer in reducing the infrastructure and maintenance costs. After first wave of enthusiasm in adopting the concept, a clearer image has been formed about the benefits and limitations of Cloud computing and a lot of different supporting technologies were develope...

Cloud computing has penetrated the Information Technology industry deep enough to influence major companies to adopt it into their mainstream business. A strong thrust on the use of virtualization technology to realize Infrastructure-as-a-Service (IaaS) has led enterprises to leverage subscription-oriented computing capabilities of public Clouds for hosting their application services. In parall...