The Infrastructure-as-a-Service (IaaS) model of cloud computing is a promising approach towards building elastically scaling systems. Unfortunately, building such applications today is a complex, repetitive and error-prone endeavor, as IaaS does not provide any abstraction on top of naked virtual machines. Hence, all functionality related to elasticity needs to be implemented anew for each appl...

With the increasing maturity of the cloud computing market, specifically in the Infrastructure as a Service (IaaS) domain, adequate pricing of services has become a crucial success factor for providers. In this work, we take a threefold approach to examine the current situation concerning pricing in the IaaS market. Based on an initial literature review, we find that pay-as-you-go pricing is pe...

This article analyzed decision-making in terms of the adoption of public cloud computing and its determinants in the context of e-government. The authors proposed a theoretical model and related hypotheses after reviewing the literature and combining technology adoption theory with IT decisionmaking authority theory. Then, they collected samples from 227 public sectors and tested hypotheses usi...

Cloud computing is an attractive computing model since it allows for resources to be provisioned according on a demand basis, i.e., cloud users can rent resources as they become necessary. With IaaS, IT services can be delivered as a subscription service, eliminating up-front costs and driving down ongoing support costs. As with managed hosting, IaaS providers keep costs low by pooling resource...

Cloud computing and Infrastructure-as-a-Service (IaaS) are emerging and promising technologies, however their faster-pased adoption is hampered by data security concerns. In the same time, Trusted Computing (TC) is experiencing a revived interest as a security mechanism for IaaS. We address the lack of an implementable mechanism to ensure the launch of a virtual machine (VM) instance on a trust...

In this article, we provide a cloud-security checklist for IaaS cloud deployments. The elements of the checklist are established by surveying the related literature on cloud-threat models and various security recommendations. We define the elements of the list on a level of abstraction that helps keep the size of the list manageable while preserving the lists practical applicability.

Major infrastructure-as-a-cloud (IaaS) providers have recently been building marketplaces of “cloud apps,” which are VMs pre-installed with a variety of software stacks. Clients of cloud computing leverage such markets by downloading and instantiating the apps that best suit their computing needs, thereby saving the effort needed to configure and build

The focus of this paper is to develop an architecture using cloud for e-governance. Cloud computing offers an easy means of achieving the application model of e-Governance with multi-tenancy. We can use public Internet as a type of communication medium and provide a framework, which can be used by every citizen in spite of his or her diversity & location. This model combines SaaS, PaaS, IaaS an...

CLOUD computing has introduced a major shift in the IT delivery model by offering computing resources for hosting applications as a utility. This helps businesses and organizations to access advanced IT facilities offered by cloud providers without the expensive up-front investments necessary to establish their own infrastructure. In this context, significant research efforts have already been ...

It is proved that cloud computing has many benefits, and cloud services with flexible licensing model and cost saving features bring opportunities to enterprise's IT operations. Conventional ERP system, an important component of enterprises, is impacted by on-demand cloud services also. Integrating conventional ERP system with cloud services becomes a trend because it brings new processing capa...