of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of Science A SERVICE-ORIENTED, SCALABLE, SECURE FRAMEWORK FOR GRIDENABLING LEGACY SCIENTIFIC APPLICATIONS By Vivekananthan Sanjeepan December 2005 Chair: José A.B. Fortes Major Department: Electrical and Computer Engineering This thesis describes a scalable...

Grid computing has become relevant due to its applications to large-scale resource sharing, wide-area information transfer, and multi-institutional collaborating. In general, in grid computing a service requests the use of a set of resources, available in a grid, to complete certain tasks. Although analysis tools and techniques for these types of systems have been studied, grid reliability anal...

Virtual machines offer a lot of advantage such as easy configuration and management and can simplify the development and the deployment of Grid infrastructures. Various virtualization implementations despite have similar functions often provide different management and access interfaces. The heterogeneous virtualization technologies bring challenges for employing virtual machine as computing re...

Improvements in distributed computing, and the technologies that enable them, have led to significant improvements in middleware functionality and quality, mainly through networking and protocols. However, the distributed programming style is the same as ten, twenty, even thirty years ago. Most programs are still written line per line of code in languages like C, C++, and Java. These convention...

Data Grids are currently proposed solutions to large scale data management problems including efficient file transfer and replication. Large amounts of data and the world-wide distribution of data stores contribute to the complexity of the data management challenge. Recent architecture proposals and prototypes deal with replication of read-only files but do not address the replica synchronisati...

The main services in cloud computing are SaaS (Software as a Service), PaaS (Platform as a Service) and IaaS (Infrastructure as a Service). Among these services, server virtualization falls into IaaS which is a service for lowering server maintenance costs. Generally, the primary aim of server virtualization has been to improve system performance by replacing multiple servers with a single serv...

Although the current computer-aided design (CAD) and computer network technologies have laid the foundation for the emerging fields of computer supported cooperative work (CSCW) in multidisciplinary design, the heterogeneity of multidisciplinary design knowledge representation is still a major obstacle to sharing and exchanging multidisciplinary design knowledge for multidisciplinary collaborat...

The fundamental problem that the Grid research and development community is seeking to solve is how to coordinate distributed resources amongst a dynamic set of individuals and organisations in order to solve a common collaborative goal. The problem arises through the heterogeneity, distribution and sharing of the resources in different virtual organisations. Interoperability is a main issue fo...

An important factor influencing task execution time is the mobility of the devices. Higher mobility is a critical factor affecting the grid performance. In other words, if the devices in the grid are highly mobile, this adversely impacts the time taken to perform a computationally-intensive task. A related issue is that of subordinates and/or the initiator leaving the cell while partial tasks a...

12Assistant Professor, Department of Computer Applications, Muthayammal College of Arts & Science, Namakkal, Tamilnadu, India. ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The computational grid is rapidly evolving into a service-oriented computing infrastructure that facilitates resource sha...