Hassan Rasheed

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Due to the rapid emergence of Information Technology, cloud computing provides assorted advantages to service providers, developers, organizations, and customers with respect to scalability, flexibility, cost-effectiveness, and availability. However, it also introduces new challenges and concerns, especially in terms of security and privacy. One of the(More)
Grid computing enables sharing, selection and aggregation of large collections of geographically and organizationally distributed heterogeneous resources to increase computational, and storage power, resource accessibility and utilization for solving large-scale data intensive problems in science, engineering and commerce. One of the distinct(More)
We present the Intelligent Application Oriented System (IANOS) resource broker models and internals. The aim of IANOS is to provide an understanding of and a solution to the problem of how to find the best resource for a given submitted application in order to optimally use a set of HPC resources (an HPCN Grid). Best in the sense “at a given moment and for(More)
Research on security systems has typically focused on improving the performance and reliability of a single technique, algorithm or mechanism. There is also significant potential, however, in studying security as the product of a few key systems and then analyzing how those systems can best be integrated to achieve better overall system security. Most(More)
Internet-based information technology (I-IT) has become an integral part of the value chain for many firms, increasing the efficiency of existing activities and enabling new modes of doing business. Despite a significant amount of research on I-IT, however, its exact impact on firm performance has yet to be resolved. This study examines multiple issues(More)