We consider the problem of managing a hybrid computing infrastructure whose processing elements are comprised of in-house dedicated machines, virtual machines acquired on-demand from a cloud computing provider through short-term reservation contracts, and virtual machines made available by the remote peers of a best-effort peer-to-peer (P2P) grid. Each of these resources has different cost basi...

The next-generation commercial airplane models have networking facilities that enable onboard systems to communicate between themselves as well as with offboard systems. This new feature allows network applications to realize many benefits for airplane manufacturing, operations and maintenance processes. However, at the same time vulnerabilities are introduced that can threaten the onboard syst...

There are thousands of stand-alone projects that aim to bring information and communication technology (ICT) to developing regions, but nearly all of them depend on existing hardware and infrastructure developed for affluent regions. As such, these imported technologies fail to address key challenges in cost, deployment, power, and support for populations with low levels of literacy and multipl...

To provide the same classroom experiential learning for local and remote students, the BAE department at UGA has developed an "extended classroom" facility whereas all involved (teachers local or remote; students local or remote) can hear, see and otherwise interact with each other. Furthermore, in real time, all local and remote participants can annotate their personal versions of classroom ac...

Not long ago, the IT profession was concerned with integrating islands of information. Then the focus shifted to integration of applications to form enterprise systems. A major challenge of the new millennia is the integration of IT infrastructures that have emerged as technology rapidly advanced during the past couple of decades. This holistic view is similar to many ideas found in Stafford Be...

A global vulnerability of an IT infrastructure is a set of vulnerabilities in its nodes that enables a sequence of attacks where an agent acquires the privileges that each attack requires as a result of the previous attacks in the sequence. This paper presents QSec, a tool to support decision on the infrastructure security that queries a database with information on global vulnerabilities and t...

Corporate adoption of information technology (IT) infrastructure is a critical management issue that may be affected by national culture. Prior research has shown that dimensions of national culture affect development of national IT infrastructure as well as adoption and impact of IT applications. This study explores the impact of two dimensions of national culture (uncertainty avoidance and po...

It has been strongly argued that information technology (IT) infrastructure has a strategic impact on an organization. However, no empirical examination of this relationship has been performed. In this paper, based on a survey of 236 firms, the organizational impact of IT infrastructure is assessed using a research model incorporating both direct and indirect impacts. Our results show that, alt...

Investment in information technology (IT) infrastructure has in recent years become a strategic organizational choice. Yet, there exists little understanding of the organizational factors that determine IT infrastructure capabilities and investment requirements. Using a filed survey of both business and IT executives, this study tests a research model that links a set of organizational factors ...

Information technologies and other critical infrastructures are interconnected in ways that can lead to vulnerabilities in the ability of these infrastructures to perform during natural disasters and acts of terrorism either to reduce adverse consequences or provide needed emergency response services. This research applies and adapts a number of indicators of infrastructure interdependency base...