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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Development of a new microwave Vivaldi antenna suitable for direction finding.

Naidoo, N. R. January 2004 (has links)
The mobile data market in South Africa is predicted to be a significant revenue contributor for mobile telecommunication operators, such as MTN, over the next five years. In light of the declining revenue from the traditional voice services, most operators worldwide are turning to mobile data as the solution to this problem. However, there is widespread confusion on which is the correct business model to implement in order to maximise the gains from this new market. To add to the complexity, there is also no clear cut technology upgrade path. While it is well understood that the main driver for the mobile data market will be high data throughputs, the industry is still unsure on which is the best route for an operator to follow as it moves from a second generation (2G)to a third generation (3G) network. This dissertation discusses the business model that MTN should implement in order to become the market leader for mobile data in South Africa. A literature survey on the latest market characteristics and forecast for the mobile data industry is presented. The recent developments on mobile data business models is also discussed. The technology upgrades, i.e. GPRS, EDGE and UMTS, available to a mobile telecommunication operator is described in detail. GPRS is the first stage in the evolution from a 2G to a 3G network and offers data rates of 40 Kb/s. EDGE improves on the GPRS technology with data speeds of 59.2 Kb/s per timeslot and utilise the same frequency, radio and switching equipment. UMTS is the final stage and is capable of delivering 2 Mb/s data rates. It operates on a different frequency spectrum, thus, requiring a new licence from the telecommunications regulator. In order to develop a new business model, MTN's current GPRS model is analysed. The poor success rate of this model can be attributed to the high prices being charged for the services and the lack of any "killer applications" to entice the users. The business model focuses on the customer value of service, organisational, technical and pricing models. For the customer value of service, it is shown that MTN must offer cheaper prices for the services, higher data rates and more exciting applications. The pre-paid subscribers should also be allowed access to the mobile data network. The main changes to the organisational arrangement in MTN includes creating sub-departments in marketing, sales and network group to focus solely on mobile data. MTN must develop an integrated services approach and this can only be achieved by developing partnerships with all key players in the mobile data industry, such as content providers and application developers. Due to the high costs, the technology arrangement section proposes that MTN first upgrade the network to be EDGE capable and later implement a UMTS network. The financial arrangement discusses the revenue, pricing and cost model. The revenue model proposes the development of an exciting and attractive mobile portal. New services and applications such as mobile gaming and gambling must be created for the personal consumers. For the corporate consumers, applications and services must be developed for customer relation management, supply chain management and workforce application. A hybrid pricing model must be adopted. A fixed, metered and value based pricing structure should be implemented to make the services more affordable and to gain the maximum revenues. Finally, the various elements that constitute the cost model is examined. The major contributing costs for the operator will be the network upgrade and subscriber acquisition. / Thesis (MBA)-University of KwaZulu-Natal, 2004.
2

IT Strategy at the National Ports Authority of South Africa.

Govender, Alan. January 2003 (has links)
This study on IT strategy was conducted at the National Ports Authority of South Africa. Firstly literature review was undertaken in the field of Business Strategy and to a larger extent on IT strategy. This culminated in a model that could be used to benchmark against the IT strategy being used at the National Ports Authority of South Africa. Due consideration was also given to the implementation of strategy in the literature review which could be compared with the implementation of strategy at the National Ports Authority of South Africa. The company situation was thereafter presented and discussed in context with what was covered in the literature review. An impact study of the IT strategy on the business processes at the National Ports Authority was also conducted. Interviews were conducted to determine what was working well and also what was not working well at the National Ports Authority of South Africa. Finally recommendations were provided to the National Ports Authority of South Africa on how to improve the business processes and the strategy formulation process. / Thesis (MBA)-University of Natal, Durban, 2003.
3

A study to evaluate the suitability of strategic alignment in a changing external environment : a case study of Moreland Developments (Pty) Limited.

Chetty, Dayalan. January 2003 (has links)
Moreland Developments (Pty) Limited is KwaZulu-Natal's leading land developer, consistently delivering on its vision of providing sustainable, quality developments across the spectrum of its operating portfolios. However, the changing external environment has recently presented new challenges to the company, raising the question of the appropriateness of the differentiated focus land-only development strategy. The assessment of whether Moreland's business strategy addresses the environments in which it operates is based on a theoretical model. An assessment of the internal operations of Moreland together with an examination of the external environment in which the company competes has uncovered a misalignment between these environments and the strategic direction pursued. The model is used to provide a more appropriate response to the management dilemma of eroding profit margins brought on by, in the main, an increase in infrastructure costs. The outcome of testing strategic options against current internal and external conditions has presented a compelling argument for the shifting of the strategic thrust of Moreland: from pursuing a focused land-only development strategy to one of concentric diversification. By Moreland extending its operations to related businesses and downstream activities, the company is better positioned to extract a greater return where value-added is greatest. Since Moreland does not possess all the core competences and resources in order to undertake the value-added downstream activities, partnering such an initiative with a company that does have such resources will bridge the gap between pure land-only development and property development. The net effect of the concentric diversification strategy will be to spread the risk that Moreland is exposed to and to generate returns that are commensurate with the level of value-added activities. / Thesis (MBA)-University of Natal, 2003.
4

An overview of China's one child policy and health consequences on society.

Nayak, Satyam. Franzini, Luisa, Morrison, Alanna January 2008 (has links)
Thesis (M.P.H.)--University of Texas Health Science Center at Houston, School of Public Health, 2008. / Source: Masters Abstracts International, Volume: 47-01, page: . Adviser: Luisa Franzini.

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