by Feng Gang. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1998. / Includes bibliographical references (p. 169-181). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese.

Organizations become more homogenous when they adapt to the external environment for survival and competitiveness. Institutional theorists call this phenomenon "isomorphism," which is a constraining process that forces organizations---through coercive, mimetic, or normative pressures---to resemble each other when facing the same set of environmental conditions. In recent years, concerns about cost-efficiency and standardization of information technology (IT) have led organizations to rely more heavily on IT to enhance their business operations. Enterprise resource planning (ERP) systems enable the tight integration of all necessary business functions into a single system. Typically, a database, designed to standardize organizational IT platforms and business processes, is shared throughout an organization. The high adoption rate of ERP systems among the biggest corporations has pressured other organizations to adopt ERP systems. Information system (IS) researchers call this phenomenon "technical isomorphism". / This study examines the effects of ERP implementation on organizational homogeneity from the viewpoint of institutional theory. Through mediating factors, such as the extent of ERP implementation and software adaptation, this study also investigates the effects of organizational homogeneity on the core competencies of user-organizations. It addresses four important issues: (a) whether institutional pressures lead to organizational homogenization; (b) whether institutional pressures affect the extent of ERP implementation in organizations; (c) whether the extent of ERP implementation affects software adaptation and subsequently, homogenization; and (d) whether the core competencies of organizations are ultimately affected by the adoption of technology. / This study's findings contribute to our understanding on the effects of ERP implementation in organizations, particularly on the IT and business activities. They open a whole new arena of research into the impact of technology on organizational abilities, providing a new set of constructs, relationships, antecedents, and dependent variables. Moreover, this study provides the necessary evidence on the occurrence of homogenization, its origins, and its consequences. It also provides valuable guidelines in finding a balance between conformity and retaining the uniqueness of companies, which is regarded as a source of core competencies. Thus, the research findings can help organizations redirect their focus and efforts into ERP implementation, saving millions of dollars in the process. / Liu, Kar Wai Connie. / Adviser: Vincent S. Lai. / Source: Dissertation Abstracts International, Volume: 72-04, Section: A, page: . / Thesis (Ph.D.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 141-152). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. Ann Arbor, MI : ProQuest Information and Learning Company, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. Ann Arbor, MI : ProQuest Information and Learning Company, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese; appendix 8.3 and 8.4 in Chinese.

Our study on interdomain traffic engineering focuses on AS Path Prepending (ASPP), a popular way for inbound traffic engineering. In order to improve the current situation that ISPs often practise this approach in a trial-and-error basis, we propose a greedy algorithm to help ISPs perform this approach systematically and efficiently. Then we demonstrate two fundamental issues of decentralized selfish traffic engineering, routing instability and global network performance degradation, based on an abstract model where ISPs perform traffic engineering for their individual load balance. We also present a real-world pathologic case of prepending instability from our measurement study. Some simple guidelines are given for ISPs to avoid such routing instability. / Our work on peering strategy is to help ISPs understand the economic implications of various traffic patterns and make proper decisions to optimize their business. We first conduct an economic analysis for an overlay streaming network to gain some insights on the free ride phenomenon. We further improve the analysis by taking the response of subscribers into consideration and formulate the dynamic market as a multi-leader-follower game to capture the Nash Equilibrium of the routing tussle among the major players of the Internet marketplace. Based on this framework together with a gravity traffic model, we present some important observations on the implications of overlays on ISPs' peering strategy. / Over the past several years, numerous types of "overlay" networks change the interdomain traffic pattern and ISPs lose the routing control of some interdomain traffic flows due to the application layer routing. As a result, some ISPs may provide unintended transit service for other local ISPs. It upsets the traditional business model and makes ISPs' peering strategies more complicated. / The Internet has quickly evolved into a vast global network owned and operated by thousands of interconnected Internet Service Providers. Each of these ISPs, as one autonomous system, has its individual economic interests. ISPs can achieve their objectives through peering strategy and interdomain traffic engineering. These two issues are important for ISPs' business and have significant implications on the Internet architecture. / Wang, Hui. / "September 2007." / Adviser: Dah Ming Chiu. / Source: Dissertation Abstracts International, Volume: 69-08, Section: B, page: 4865. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (p. 163-170). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstracts in English and Chinese. / School code: 1307.

by Guo, Xiao-Lei. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1996. / Includes bibliographical references (p. 138-[147]). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web.

Choi, Fu Wing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (p. 54-57). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.2 / Chapter 2 --- Overview --- p.5 / Chapter 2.1 --- Summary of our Router Virtualization Architecture --- p.6 / Chapter 3 --- LVRM Design --- p.9 / Chapter 3.1 --- Socket Adapter --- p.9 / Chapter 3.2 --- VR Monitor --- p.11 / Chapter 3.3 --- VRI Monitor --- p.14 / Chapter 3.4 --- VRI Adapter --- p.16 / Chapter 3.5 --- Inter-Process Communication (IPC) Queue --- p.17 / Chapter 3.6 --- LVRM Adapter for VRI --- p.17 / Chapter 3.7 --- VRI --- p.18 / Chapter 3.8 --- Interfacing Between LVRM and VRs --- p.18 / Chapter 4 --- Experiments --- p.20 / Chapter 4.1 --- Experimental Setup --- p.20 / Chapter 4.2 --- Performance Overhead of LVRM --- p.23 / Chapter 4.3 --- Core Allocation --- p.31 / Chapter 4.4 --- Load Balancing --- p.38 / Chapter 4.5 --- Scalability --- p.43 / Chapter 4.6 --- Lessons Learned --- p.47 / Chapter 5 --- Related Work --- p.50 / Chapter 6 --- Conclusions --- p.52

Leung Ka Hing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 94-96). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Characterization and Performance Analysis --- p.8 / Chapter 2.1 --- Two-class Proportional Differentiated Service --- p.11 / Chapter 2.2 --- N-class Proportional DS --- p.13 / Chapter 3 --- Experiments of Proportional Delay Differentiation using the It- erative Algorithm --- p.20 / Chapter 3.1 --- Experiments using Poisson arrivals --- p.21 / Chapter 3.2 --- Experiments using other arrivals distributions --- p.33 / Chapter 4 --- Dynamic Adjustment --- p.37 / Chapter 4.1 --- Adjustment algorithms --- p.37 / Chapter 5 --- Experiments of Proportional Delay Differentiation using Dy- namic Adjustment --- p.41 / Chapter 5.1 --- Illustration of dynamic adjustment --- p.43 / Chapter 5.2 --- Poisson --- p.45 / Chapter 5.3 --- Pareto --- p.48 / Chapter 5.4 --- MMPP --- p.54 / Chapter 5.5 --- Heterogeneous traffic classes --- p.60 / Chapter 5.6 --- Experiments for short time-scale analysis --- p.62 / Chapter 6 --- Multiple nodes --- p.69 / Chapter 7 --- Summary of the Experiments Results --- p.75 / Chapter 8 --- Improvement of WTP --- p.78 / Chapter 8.1 --- Algorithm --- p.78 / Chapter 8.2 --- Experiments --- p.80 / Chapter 9 --- Possible Extensions --- p.85 / Chapter 9.1 --- Application Extension --- p.85 / Chapter 9.2 --- Performance Quantification --- p.87 / Chapter 10 --- Conclusion --- p.90

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Distributed media streaming has been driven by the combination of improved media compression techniques and an increase in the availability of bandwidth. This increase has lead to the development of various streaming distribution engines (systems/services), which currently provide the majority of the streaming media available throughout the Internet. This study aimed to analyse a range of existing commercial and open-source streaming media distribution engines, and classify them in such a way as to define a Common Analysis Framework for Simulated Streaming-Video Networks (CAFSS-Net). This common framework was used as the basis for a simulation tool intended to aid in the development and deployment of streaming media networks and predict the performance impacts of both network configuration changes, video features (scene complexity, resolution) and general scaling. CAFSS-Net consists of six components: the server, the client(s), the network simulator, the video publishing tools, the videos and the evaluation tool-set. Test scenarios are presented consisting of different network configurations, scales and external traffic specifications. From these test scenarios, results were obtained to determine interesting observations attained and to provide an overview of the different test specications for this study. From these results, an analysis of the system was performed, yielding relationships between the videos, the different bandwidths, the different measurement tools and the different components of CAFSS-Net. Based on the analysis of the results, the implications for CAFSS-Net highlighted different achievements and proposals for future work for the different components. CAFSS-Net was able to successfully integrate all of its components to evaluate the different streaming scenarios. The streaming server, client and video components accomplished their objectives. It is noted that although the video publishing tool was able to provide the necessary compression/decompression services, proposals for the implementation of alternative compression/decompression schemes could serve as a suitable extension. The network simulator and evaluation tool-set components were also successful, but future tests (particularly in low bandwidth scenarios) are suggested in order to further improve the accuracy of the framework as a whole. CAFSS-Net is especially successful with analysing high bandwidth connections with the results being similar to those of the physical network tests.