M. Tech. Professional Practice in Information Technology. Tshwane University of Technology, 2008. / The application of Information and Communication Technology (ICT) in business environment (profit-making and non-profit-making organisations, and public administration) has given business the power to provide its services faster, smoother, and at extended time than ordinary day working hours especially in the banking industry where the service delivery is expected to be 24 hours a day for seven days a week. Many organisations in today’s’ networked economy, mostly banking organisations, rely on ICT infrastructure to operate. The key to success with technology is not the technology per se, but the ability to manage it well. In sustaining business operations, ICT infrastructure needs to be effectively managed, with the application of tested and proven best practices such as ICT management frameworks for the organisation to benefit from it. This research explores the usage of ICT management frameworks in managing ICT infrastructure in the South African banking industry, where there is a complexity of systems because of combination of different components, some built in-house, and others procured from third-party suppliers. This research study is exploratory, applying the qualitative research approach as research strategy. It applies structured interviews as a tool for collection of primary data from participants, and uses reviews of previous publications on ICT management frameworks for secondary data collection. After a review of collected data, it has been found that: - It is important to ensure effective management of ICT infrastructure by applying best-practices as it is needed in supporting the organisation to achieve its objectives; - Though the use of ICT management frameworks is different from one bank to another, all banking organisations refer to the practices of ICT frameworks to manage their infrastructures and related processes; - Though there is not much difference in the management of ICT infrastructure in banking industry and others industries that rely on ICT for management and service delivery, banking organisations pay more attention to security, continual service delivery, and fast service delivery. Looking at the complexity of ICT infrastructures in major commercial banks investigated, it has been recommended that banks should not only concentrate on the collection of best practices in different frameworks, but also direct their efforts in creating one single framework that addresses business vision, strategies and the managerial system with more concentration on ICT infrastructure for the support of its operations, information management and sharing.

Network virtualization and overlay networks have emerged as powerful tools for improving the flexibility of the Internet. Overlays are used to provide a wide range of useful services in today's networking environment, and they are also viewed as important building blocks for an agile and evolvable future Internet. Regardless of the specific service it provides, an overlay needs assistance in several areas in order to perform properly throughout its existence. This dissertation focuses on the mechanisms underlying the provision of auxiliary support services that perform control and management functions for overlays, such as overlay assignment, resource allocation, overlay monitoring and diagnosis. The priorities and objectives in the design of such mechanisms depend on network conditions and the virtualization environment. We identify opportunities for improvements that can help provide auxiliary services more effectively at different overlay life stages and under varying assumptions. The contributions of this dissertation are the following: 1. An overlay assignment algorithm designed to improve an overlay's diagnosability, which is defined as its property to allow accurate and low-cost fault diagnosis. The main idea is to increase meaningful sharing between overlay links in a controlled manner in order to help localize faults correctly with less effort. 2. A novel definition of bandwidth allocation fairness in the presence of multiple resource sharing overlays, and a routing optimization technique to improve fairness and the satisfaction of overlays. Evaluation analyzes the characteristics of different fair allocation algorithms, and suggests that eliminating bottlenecks via custom routing can be an effective way to improve fairness. 3. An optimization solution to minimize the total cost of monitoring an overlay by determining the optimal mix of overlay and native links to monitor, and an analysis of the effect of topological properties on monitoring cost and the composition of the optimal mix of monitored links. We call our approach multi-layer monitoring and show that it is a flexible approach producing minimal-cost solutions with low errors. 4. A study of virtual network embedding in software defined networks (SDNs), identifying the challenges and opportunities for embedding in the SDN environment, and presenting two VN embedding techniques and their evaluation. One objective is to balance the stress on substrate components, and the other is to minimize the delays between VN controllers and switches. Each technique optimizes embedding for one objective while keeping the other within bounds.

Thesis (Ph. D.)--School of Computing and Engineering. University of Missouri--Kansas City, 2007. / "A dissertation in computer networking and telecommunication networking." Advisor: Deep Medhi. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed Jan. 24, 2008. Includes bibliographical references (leaves 130-138). Online version of the print edition.

Thesis (M.S.)--University of Alabama at Birmingham, 2007. / Additional advisors: David G. Green, Gary J. Grimes, John L. Hartman IV. Description based on contents viewed Feb. 5, 2008; title from title screen. Includes bibliographical references (p. 110-120).

Thesis (M.S.)--Rochester Institute of Technology, 1990. / Spine title: Authentication models. Bibliography. p. [167-175].

Thesis (Ph.D.)--University of Wollongong. / Typescript. Includes bibliographical references: leaf 169-179.

Thesis (M. Sc.)--Carleton University, 2004. / Includes bibliographical references (p. 96-101). Also available in electronic format on the Internet.

Thesis (M.S. in Computer Science)--Naval Postgraduate School, September 2009. / Thesis Advisor(s): Gibson, John ; Singh, Gurminder. "September 2009." Description based on title screen as viewed on 5 November 2009. Author(s) subject terms: IEEE 802.15.4, wireless sensor network, remote imaging, wireless. Includes bibliographical references (p. 79-81). Also available in print.

Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 1990. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves [136]-148).

Thesis (M. Phil.)--University of Hong Kong, 1999. / Includes bibliographical references (leaves 71-75).