Diplomarbeit im Studiengang Information Science an der Hochschule für Technik und Wirtschaft Chur.

Thesis (M.A.)--University of Missouri-Columbia, 2004. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (June 30, 2006) Vita. Includes bibliographical references.

Thesis (Ph. D.)--University of Washington, 1987. / Vita. Bibliography: leaves [213]-215.

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This thesis is about investment and access in network industries. More specifically, the aim of the thesis is to build theoretical models to examine some of the aspects of the link between access prices and incentives to invest in network infrastructure. We consider two basic questions relating to these issues, namely (i) how best to fund an incumbent network owner's investment when the network is an essential input for the operation of downstream providers, and (ii) what level of coverage a new firm which enters a market by building its own network infrastructure will choose. The choice of access prices has drawn a lot of attention from regulation economists and is a central aspect of regulatory planning. However, while becoming central to policy debate in the area, the effect of this choice on firms' incentives to invest in network infrastructure has received only limited attention. The questions considered here are motivated by examples in several network utilities in the UK and abroad. In both cases, substantial debate taking place concerning the choice of access prices and, at the same time, major investment in network infrastructure is required and is indeed taking place.

Prof. C. Rensleigh

M.Comm. / The problem of establishing and controlling remote access to corporate networks has become one of the most difficult issues facing network administrators and information security professionals (Tipton & Krause (b), 2001:99). As the connection devices become more powerful and less expensive, more and more personally owned devices make their way to the connected edge of the network. The rise of the Internet as an accepted vehicle for business use has dramatically increased the points of entry to the corporate network. As employees and third parties gain mobility through the use of laptops, smart phones and Personal Digital Assistants (PDAs), the threat to organisational security grows (Cartwright, 2001). There are three main reasons why remote access connections are often insecure: Lack of awareness regarding security risks associated with remote access; Protecting a remote access connection is a complex task which is unlikely to be done well unless a methodical approach is taken; and Remote locations are not under the direct control of the organisation and are inherently insecure (Information Security Forum (a), 1999). The purpose of this short dissertation is to: Provide an overview of remote access, including concepts and definitions; Identify the risks associated with remote access to corporate networks; Identify possible controls to mitigate these risks; and highlight possible future trends regarding remote access.

M.Sc. (Computer Science) / Please refer to full text to view abstract

This thesis reports on a study towards a sustainable open access scholarly publishing model in South Africa. The researcher defined the traditional scholarly publishing model as a foundation for scholarly publishing workflows and processes and the continuation of the publishing workflow as a sustainable business model. This model is simplified in this study to allow for further discussion in the investigation of the various business models of scholarly publishing. The researcher conducted a literature study to identify and define business models used in open access scholarly publishing in the international context and also developed a set of factors contributing to sustainability in this environment. These factors were then used to evaluate and investigate typical examples of open access role players in the South African context, using a desk study and interviews documented as case studies of the various initiatives. The researcher combined all these findings to make suggestions towards a sustainable open access scholarly publishing by identifying and exploring the various factors associated with open access models in South Africa, considering the roles of all the role players towards output of high quality research articles. The study found that South African scholarly publishers find the shift from a traditional subscription model to an open access model difficult, because they are not addressing their new client segment and also not acknowledging their own expertise within the publishing cycle.The research also indicates that the approach of either subscription or open access hinders a sustainable open access publishing model, but that the publishing community should instead encourage an approach a publishing environment that allows for both of these models to exist and function. Open access should not replace the traditional model but instead, enhance it. / Dissertation (MIS)--University of Pretoria, 2015. / Information Science / Unrestricted