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Dissertations / Theses on the topic 'Computer network protocols – South Africa'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Lutshete, Sizwe. "An analysis of the correlation beween packet loss and network delay on the perfomance of congested networks and their impact: case study University of Fort Hare." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1006843.

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In this paper we study packet delay and loss rate at the University of Fort Hare network. The focus of this paper is to evaluate the information derived from a multipoint measurement of, University of Fort Hare network which will be collected for a duration of three Months during June 2011 to August 2011 at the TSC uplink and Ethernet hubs outside and inside relative to the Internet firewall host. The specific value of this data set lies in the end to end instrumentation of all devices operating at the packet level, combined with the duration of observation. We will provide measures for the no

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2

Gerber, Tian Johannes. "VoIP : a corporate governance approach to avoid the risk of civil liability." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1016272.

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Since the deregulation of Voice over Internet Protocol (VoIP) in 2005, many South African organizations are now attempting to leverage its cost saving and competitive values. However, it has been recently cited that VoIP is one of the greatest new risks to organizations and this risk is cited to increase Information Security insurance premiums in the near future. Due to the dynamic nature of the VoIP technology, regulatory and legislative concerns such as lawful interception of communications and privacy may also contribute to business risk. In order to leverage value from the VoIP implementat

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Tarwireyi, Paul. "Design and implementation of a network revenue management architecture for marginalised communities." Thesis, University of Fort Hare, 2007. http://hdl.handle.net/10353/72.

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Rural Internet connectivity projects aimed at bridging the digital divide have mushroomed across many developing countries. Most of the projects are deployed as community centred projects. In most of the cases the initial deployment of these projects is funded by governments, multilateral institutions and non-governmental organizations. After the initial deployment, financial sustainability remains one of the greatest challenges facing these projects. In the light of this, externally funded ICT4D interventions should just be used for “bootstrapping” purposes. The communities should be “groomed

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4

De, Bruyn Daniel Nicholas. "Investigation and development of a system for secure synchronisation in a wireless mesh network." Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2010. http://hdl.handle.net/11462/132.

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Thesis (M. Tech.(Electrical Engineering)) -- Central University of technology, Free State, 2010<br>This dissertation gives an overview of the research done in developing a protocol to synchronise information in a secure wireless mesh network. Alternative methods to control wireless devices were investigated in the non-controlled frequency spectrum. The aim of the research was to develop a protocol that can be loaded on a micro-controller with limited intelligence, controlling endpoints. The protocol minimises human interference and automatically negotiates which device becomes the master c

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Murisa, Wesley Vengayi. "Deploying DNSSEC in islands of security." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1003053.

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The Domain Name System (DNS), a name resolution protocol is one of the vulnerable network protocols that has been subjected to many security attacks such as cache poisoning, denial of service and the 'Kaminsky' spoofing attack. When DNS was designed, security was not incorporated into its design. The DNS Security Extensions (DNSSEC) provides security to the name resolution process by using public key cryptosystems. Although DNSSEC has backward compatibility with unsecured zones, it only offers security to clients when communicating with security aware zones. Widespread deployment of DNSSEC is

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6

Coleman, Alfred. "Developing an e-health framework through electronic healthcare readiness assessment." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/1519.

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The major socio-economic development challenges facing most African countries include economic diversification, poverty, unemployment, diseases and the unsustainable use of natural resources. The challenge of quality healthcare provisioning is compounded by the HIV/AIDS pandemic in Sub Saharan Africa. However, there is a great potential in using electronic healthcare (e-health) as one of the supportive systems within the healthcare sector to address these pressing challenges facing healthcare systems in developing countries, including solving inequalities in healthcare delivery between rural a

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7

Wells, Daniel David. "Network management for community networks." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1006587.

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Community networks (in South Africa and Africa) are often serviced by limited bandwidth network backhauls. Relative to the basic needs of the community, this is an expensive ongoing concern. In many cases the Internet connection is shared among multiple sites. Community networks may also have a lack of technical personnel to maintain a network of this nature. Hence, there is a demand for a system which will monitor and manage bandwidth use, as well as network use. The proposed solution for community networks and the focus within this dissertation, is a system of two parts. A Community Access P

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8

Mjikeliso, Yolanda. "Guidelines to address the human factor in the South African National Research and Education Network beneficiary institutions." Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/9946.

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Even if all the technical security solutions appropriate for an organisation’s network are implemented, for example, firewalls, antivirus programs and encryption, if the human factor is neglected then these technical security solutions will serve no purpose. The greatest challenge to network security is probably not the technological solutions that organisations invest in, but the human factor (non-technical solutions), which most organisations neglect. The human factor is often ignored even though humans are the most important resources of organisations and perform all the physical tasks, con

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9

Twele, Nombulelo. "A feasibility study of wireless network technologies for rural broadband connectivity." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1016167.

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The adoption of wireless broadband technologies to provide network and Internet connectivity in rural communities has conveyed the possibility to overcome the challenges caused by marginalization and many other characteristics possessed by these rural communities. With their different capabilities, these technologies enable communication for rural communities internally within the community and externally on a global scale. Deployment of these technologies in rural areas requires consideration of different factors - these are in contrast, to those considered when deploying these technologies i

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Mooi, Roderick David. "A model for security incident response in the South African National Research and Education network." Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/d1017598.

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This dissertation addresses the problem of a lack of a formal incident response capability in the South African National Research and Education Network (SA NREN). While investigating alternatives it was found that no clear method exists to solve this problem. Therefore, a second problem is identified: the lack of a definitive method for establishing a Computer Security Incident Response Team (CSIRT) or Computer Emergency Response Team (CERT) in general. Solving the second problem is important as we then have a means of knowing how to start when building a CSIRT. This will set the basis for add

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11

Bean, Pat. "Educational computing in secondary schools of the Cape Education Department: a research survey to assess computing facility acquisition and its utilization." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1003387.

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Secondary schools under the jurisdiction of the Cape Education Department (CED) have, over the past 10 years, been acquiring computer equipment without a national policy on educational computing in South Africa, and within only broad parameters provided by their department. The aim of this study was to determine the present status of educational computing in these schools. A literature survey on educational computing was undertaken and a number of international and local 'computers-in-schools' initiatives were elucidated. A field survey, involving all CED secondary schools (239), was initiated

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12

McKinnell, L. A. "A neural network based ionospheric model for the bottomside electron density profile over Grahamstown, South Africa." Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1005262.

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This thesis describes the development and application of a neural network based ionospheric model for the bottomside electron density profile over Grahamstown, South Africa. All available ionospheric data from the archives of the Grahamstown (33.32ºS, 26.50ºE) ionospheric station were used for training neural networks (NNs) to predict the parameters required to produce the final profile. Inputs to the model, called the LAM model, are day number, hour, and measures of solar and magnetic activity. The output is a mathematical description of the bottomside electron density profile for that partic

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13

Knoetze, Ronald Morgan. "The mining and visualisation of application services data." Thesis, Nelson Mandela Metropolitan University, 2005. http://hdl.handle.net/10948/451.

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Many network monitoring tools do not provide sufficiently in-depth and useful reports on network usage, particularly in the domain of application services data. The optimisation of network performance is only possible if the networks are monitored effectively. Techniques that identify patterns of network usage can assist in the successful monitoring of network performance. The main goal of this research was to propose a model to mine and visualise application services data in order to support effective network management. To demonstrate the effectiveness of the model, a prototype, called NetPa

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Vuza, Xolisa. "Social and technical issues of IP-based multi-modal semi-synchronous communication: rural telehealth communication in South Africa." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&amp.

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Most rural areas of developing countries are faced with problems like shortage of doctors in hospitals, illiteracy and poor power supply. Because of these issues, Information and Communication Technology (ICT) is often sees as a useful solution for these areas. Unfortunately, the social environment is often ignored. This leads to inappropriate systems being developed for these areas. The aims of this thesis were firstly, to learn how a communication system can be built for a rural telehealth environment in a developing country, secondly to learn how users can be supported to use such a system.

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Van, de Haar Paul. "Towards a wireless local area network security control framework for small, medium and micro enterprises in South Africa." Thesis, Nelson Mandela Metropolitan University, 2015. http://hdl.handle.net/10948/4001.

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There is little literature available that is specific to the use of wireless local area network [WLAN) security among small, medium and micro enterprises (SMMEs) in South Africa. This research study developed a framework which may be used by SMMEs for the purposes of securing their WLANs. In view of the fact that the aim of the study was to develop a system for improving information technology security, the study followed a design science approach. A literature review was conducted on security control framework standards and WLAN technologies. The needs of SMMEs regarding WLANs were also estab

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Mashapa, Job. "An investigation into user interface factors impacting on user experience: Pastel accounting case study." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/1184.

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The purpose of this research is to propose metrics to evaluate the user interface factors that impact on the user experience of Software Accounting Applications (SAAs) used to support the accounting business activities in Small Medium and Micro Enterprises (SMMEs) operating in developing countries. The research commences by outlining the conceptual background that introduces the study. In the introductory chapter, the problems together with the objectives that motivate the significance of the study are presented. In the same chapter, the overall research focus and how each of the research ques

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Scholtz, Karin. "An investigation into the usability of asynchronous information techology for a virtual E-learning information sharing environment at a university in South-Africa." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53274.

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Thesis (MA)--Stellenbosch University, 2003.<br>ENGLISH ABSTRACT: Institutions for tertiary education are now more than ever realising the advantages of supplying the growing population with more effective and flexible learning environments through the integration of technology based media. Educational institutions are faced with the challenge of embracing technological changes within the educational domain in order to maintain their competitive position within a global arena. The University of Stellenbosch, as many other tertiary educational institutions, are challenged to view them as b

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Vasques, Vanessa Claudia. "Convergence of old and new: a case study analysis of the development online by a South African radio station: Radiosondergrense/www.rsg.co.za." Thesis, Rhodes University, 2002. http://hdl.handle.net/10962/d1003913.

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This thesis is a case study analysis of the dream one radio station had about creating something new and unique on the Internet. RadioSonderGrense (RSG), an Afrikaans South African radio station, saw opportunities for themselves as a radio station on the Internet and put enormous resources and man-power into their venture. Their vision of what the Internet could bring to their radio station, and what they could bring to a website set the ground for creative and innovative thought. This dissertation is an examination of whether the Internet lived up to the expectations RSG had for it, and wheth

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19

Martin, Michael Ronald Charles. "Establishing the benefits of implementing an I.T. project management office in the Nelson Mandela Metropolitan area." Thesis, Nelson Mandela Metropolitan University, 2007. http://hdl.handle.net/10948/558.

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The well-known concept of a Project Manager managing an I.T. project in relative isolation is no longer a viable option for organisations that are running numerous projects simultaneously. Due to the enormous costs and risks involved in many of these projects, there needs to be a means to ensure success. This has led to the establishment of the concept of a Project Management Office (PMO). An autonomous business unit that is responsible for managing all projects within an organisation. The need for a Project Management Office (PMO) to effectively manage multiple projects is becoming more and m

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Kudyachete, Gratitude. "An assessment of factors that impact on the performance of Cisco Academies: the South African situation." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1014720.

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Information and Communication Technology (ICT) is a catalyst for economic development and has been seen to provide new business opportunities and a source of competitive advantage. The acute ICT skills gap in South Africa is widely acknowledged. Such a shortage has cost the South African economy dearly, resulting in the government adopting a multi-pronged approach to the problem. The various interventions have yielded limited success leaving room for other players to contribute to the solution. The Cisco Academy programme, executed through the establishment of Cisco Academies in educational in

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Ekermans, Gina. "An investigation into the usability of synchronous information technology for a virtual e-learning and information sharing environment at a university in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53275.

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Thesis (MComm)--Stellenbosch University, 2003.<br>ENGLISH ABSTRACT: As the information age evolves, society is undergoing changes based on developments in technology that have tremendous implications for the educational systems. Institutions of tertiary education are increasingly facing the pressures of globalisation. Associated with this is the knowledge society that demands experience with technology, different skills and a different learning experience (US, 2001). Furthermore, new information and communication technologies have demonstrated the potential to transform the way that kno

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Malherbe, Daniel. "The political use of ‘new’ media in the 2014 South African national election." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96741.

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Thesis (MA)--Stellenbosch University, 2015.<br>AFRIKAANSE OPSOMMING: Nuwe media het ’n duidelike impak op die manier waarop moderne politieke partye en partyleiers hulle verkiesingsveldtogte bestuur. Hierdie studie fokus daarom op die vraag: Hoe is nuwe media tydens die 2014 Suid- Afrikaanse nasionale verkiesing gebruik? Dit word gedoen deur konteks te gee aan wat nuwe media behels, hoe dit in die moderne politiek gebruik word, en wat die impak is wat nuwe media op verkiesings en verkiesingsveldtogte het. Drie gevallestudies, die Obama-veldtog, asook die 2014 verkiesings in Indië en Bras

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Tafane, Zamikhaya. "Readiness assessment of selected tourism institutions for electronic business system applications in the Western Cape tourism industry." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50076.

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Thesis (MPhil)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: The tourism sector in the province is regarded as one of the major economic sectors that have been found to have significant growth prospects. Indeed it’s revitalising and captivating to see the provincial tourism industry organizing itself to adapt to the new challenges of the knowledge economy, while also retorting to the new demands emerging from the needs and the expectations of the customers. The Western Cape tourism industry is currently preparing itself for the knowledge intensive marketing of its products and ser

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Ramsunder, Monica. "The impact of social media marketing on purchase decisions in the tyre industry." Thesis, Nelson Mandela Metropolitan University, 2011. http://hdl.handle.net/10948/1637.

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Technology and the boom of the internet have encouraged people to connect with each other, share information and build relationships (Stelzner, 2009; 2010) and the social web has presented a new form of communication through social media which allow people to interact and converse with each other (Evans, 2010). This presents marketers with the opportunity to affect consumers purchase decisions through online marketing and social media. This social engagement by consumers has significant impact on marketing activities as marketers need to be aware of the factors affecting consumer’s purchase de

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Najaar, Baheya. "Knowledge, beliefs and practices of dietitians and doctors in South Africa on the use of the internet in healthcare." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2808.

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Thesis (MNutr (Interdisciplinary Health Sciences. Human Nutrition))--University of Stellenbosch, 2009.<br>Background: In Africa, internet access and use is plagued by numerous barriers. Whilst South Africa (SA) boasts a better population penetration than the rest of Africa there is a lack of regulation regarding the internet and e-mail use amongst health professionals and their patients. The aim of this study was to assess the use of the internet amongst dietitians and medical doctors (MDs) in clinical practice in SA and draft a policy on such usage amongst health professionals and their pati

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Njeje, Sicelo Given. "Implementing a robust, cost effective, e-commerce platform for a disadvantaged community of the Eastern Cape, South Africa." Thesis, University of Fort Hare, 2008. http://hdl.handle.net/10353/75.

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The development of electronic commerce (e-commerce) is the most visible business use of the World Wide Web. The primary goal of an e-commerce site is to sell goods and services online. This project deals with developing an e-commerce platform for marginalized communities of the Eastern Cape region, South Africa. An online “shopping mall” to support the marketing of art and crafts from disadvantaged communities is presented, with Linux-Apache-MySQL-PHP (LAMP) as the development environment. Free and Open Source Software has been chosen to develop the virtual shopping mall system because the use

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Mkhonto, Mkhonto. "THE EFFECTIVE GOVERNMENT INFORMATION ACCESSIBILITY SYSTEM FOR A COMMUNITY IN THE REMOTE AREAS OF SOUTH AFRICA." Thesis, Bloemfontein: CENTRAL UNIVERSITY OF TECHNOLOGY, FREE STATE, 2014. http://hdl.handle.net/11462/232.

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Thesis ( M. Tech. (School of Information Technology )) - Central University of Technology, Free State, 2014<br>The aim of this study has been to find out how the community in the remote areas of South Africa access government information. The study is based on four villages, two in the Northern Cape Province (Heuningvlei and Galeshewe) and two in Limpopo Province (The Oaks and Finala). A quantitative design was used. Open and closed-ended questionnaires were used to collect data from the community. Out of 200 questionnaires distributed only 144 responses were received. Responses

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Nigrini, Lucas Bernardo. "Developing a neural network model to predict the electrical load demand in the Mangaung municipal area." Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2012. http://hdl.handle.net/11462/176.

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Thesis (D. Tech. (Engineering: Electric)) -- Central University of technology, 2012<br>Because power generation relies heavily on electricity demand, consumers are required to wisely manage their loads to consolidate the power utility‟s optimal power generation efforts. Consequently, accurate and reliable electric load forecasting systems are required. Prior to the present situation, there were various forecasting models developed primarily for electric load forecasting. Modelling short term load forecasting using artificial neural networks has recently been proposed by researchers.

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Samalenge, Jimmy. "Developing SOA wrappers for communication purposes in rural areas." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/320.

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The introduction of Web Services as a platform upon which applications can communicate has contributed a great deal towards the expansion of World Wide Web technologies. The Internet and computing technologies have been some of the factors that have contributed to the socio-economic improvement of urban and industrial areas. This research focuses on the application of Service-Oriented Architecture (SOA) and Web Services technologies in Information and Communication Technologies for Development (ICT4D) contexts. SOA is a style used to design distributed systems, and Web Services are some of the

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Hlungulu, Bulumko. "Building a semantic web-based e-health component for a multipurpose communication centre." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/374.

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Rural communities have limited access to health information which is made available on the internet. This is due to poor infrastructure (i.e., lack of clinics or Internet access) and that gives them problems in accessing information within the domain of health. The availability of Information and Communication Technologies (ICTs) in a rural community can provide the community with a number of beneficial solutions to their problems as they maximize the potential of knowledge sharing and delivery. This research seeks to make use of ICTs deployed in the community of Dwesa, in order to contribute

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Van, der Linde P. L. "A comparative study of three ICT network programs using usability testing." Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2013. http://hdl.handle.net/11462/186.

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Thesis (M. Tech. (Information Technology)) -- Central University of technology, Free State, 2013<br>This study compared the usability of three Information and Communication Technology (ICT) network programs in a learning environment. The researcher wanted to establish which program was most adequate from a usability perspective among second-year Information Technology (IT) students at the Central University of Technology (CUT), Free State. The Software Usability Measurement Inventory (SUMI) testing technique can measure software quality from a user perspective. The technique is supported by a

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Swart, Lani. "An audit of online recruitment : a South African perspective." Thesis, Stellenbosch : University of Stellenbosch, 2008. http://hdl.handle.net/10019.1/3033.

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Thesis (MA (Industrial Psychology))--University of Stellenbosch, 2008.<br>The survival of an organisation in a global competitive business environment depends on its survival skills (e.g. adaptability, flexibility and innovativeness), which is situated within its human resources. Hence, the recruitment function’s role is critical, since it is responsible for the procurement of key intellectual capital that could equip the organisation with a competitive advantage. However, against the accelerated growth of the Internet combined with global competition, traditional recruitment methods are i

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Jere, Nobert Rangarirai. "Implementation of a rewards based negotiation module for an e commerce platform." Thesis, University of Fort Hare, 2009. http://hdl.handle.net/10353/267.

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Information and Communication Technologies (ICTs) have been widely deployed in developmental programs and this has lead to the creation of a new field – ICT for Development (ICT4D). Within the context of ICT4D, various e-services are being developed, including e-Commerce, e-Government, e-Health and e-Judiciary. ICT4D projects allow Small, Medium and Micro Enterprises (SMMEs) in rural areas to increase sales and gain a market share in the global market. However, many of these ICT4D projects do not succeed, because they fail to bring enough financial value to SMMEs due to the form they currently

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Herman, Nicoline. "The applicability of international benchmarks to an internet-based distance education programme at the University of Stellenbosch." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52484.

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Thesis (MPhil)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: The publication of the Report of the National Commission on Higher Education (NCHE) in 1996, the White Paper on Higher Education (1997) and the Size and Shape Report (2000) has profoundly changed the landscape of Higher Education in South Africa. Institutions of Higher Education have to re-think, among others, their teaching and learning strategies including the integration and use of technology. Although the use of technology in higher education is still in the early stages, the use of Information and Communication

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Taljaard, Marinda. "Using E-learning to support IT education in a university environment a case study approach." Thesis, University of Port Elizabeth, 2003. http://hdl.handle.net/10948/d1015740.

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At the University of Port Elizabeth (UPE), the End User Computing course (EUC) acts as a service course for many departments. This implies that many students are forced by their curricula to register for this course. The ever-increasing numbers in EUC place a considerable load on existing human and physical resources. In lecture groups of 120 –160, students rarely get the attention they need, and the pace at which the content is delivered (too slow or too fast) may also inhibit the learning process. During an initial investigation into E-learning at UPE in 1999, a prototype virtual classroom w

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Mohamed, Hassan. "Social media use among NMMU students." Thesis, Nelson Mandela Metropolitan University, 2011. http://hdl.handle.net/10948/1636.

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This research provides insight into the use of social networks and social media by students at the Nelson Mandela Metropolitan University. The primary purpose of this research is to investigate student social media practices at NMMU to establish the reasons for students engaging in social media. A growing number of educators acknowledge the potential of social networking to (re)engage learners with their studies, while others fear that such practices compromise and disrupt student engagement with traditional education provision (Selwyn, 2009). This study, therefore, aims to identify how and fo

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Baxter, Claude Brian. "A web-based, enterprise-wide, integrated information system as the source of high quality information for decision-making processes in the Department of Education in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/16474.

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Thesis (MPhil)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: The Education Management Information System (EMIS) is the business unit that is responsible for information management and business reporting in the Department of Education. EMIS finds it difficult to provide high quality information to the Department of Education internally and its stakeholders externally and attributes the reduction of the quality of its education information to factors such as the organisational nature of the South African education system, the lack of information management standards and practices, th

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Hoffman, Bernard. "The making of a community newspaper website : http://www.helderberg.com." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52547.

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Thesis (MPhil)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: Helderberg.com started out as a Virtual Village, with its roots firmly entrenched in the community newspaper from which it developed - the DistrictMail. It quickly evolved into a full blown community newspaper website with its own business model, earning its own way. Dotcoms are based on a virtual business model not seen up till now, trying to replace 'bricks and mortar' with 'clicks and mortar', making it difficult for investors to evaluate its worth. The DistrictMail community newspaper has been the heartbeat of the

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Konga, Yannick Lokombo Kala. "Formal specification and verification of peer-to-peer network protocols." 2011. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000638.

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M. Tech. Electrical Engineering.<br>This research presented an integrated formal model of the JXTA protocol suite. The integrated model is constructed from the individual models describing the behaviours of protocols entities. Written in the PROMELA specification language, the finite state automata of these models are shown instead. The SPIN-based formal verification revealed that this studys integrated model was too large to perform for the computational resources available. This was in spite of the application of multiple complexity reduction techniques. Subsequently, as final recourse, the

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Kouassi, Nguettia William. "Development of an improved routing approach in wireless sensor networks." 2015. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001699.

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M. Tech. Electrical Engineering.<br>Discusses the question of how to prolong the life of an entire sensor network by reducing the power consumption is the most important issue in wireless sensor networks. Traditional routing schemes have not fulfilled the expectations of an optimised WSN, and as a result, new algorithms are being designed globally. One of these protocols which serve as a basis for this study is the RCRR. In this project, we present a new approach of the Relative Coordinates Rumor Routing algorithm based on a link quality awareness scheme and a modified version of the protocol

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Miao, Lusheng. "Scheduling and QoS enhancement in wireless vehicular ad-hoc networks." 2014. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001736.

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D. Tech. Electrical Engineering.<br>Discusses the protocol design in VANETs is very challenging due to their low latency and high data rate requirements in a high mobility environment. Hence, the central metrics of QoS such as throughput, reliability and delays are critical to the design of protocol in VANETs. Therefore, this project focuses on the scheduling and QoS enhancement algorithms. The QoS analytical model and multi-channel MAC protocol were completed; this was significant for the development of the VANETs.The anticipated benefits of this study may be described as: 1. The duty cycle a

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Mahlaba, Simon Bonginkosi. "A MAC protocol for IP-based CDMA wireless networks." Thesis, 2005. http://hdl.handle.net/10413/2772.

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The evolution of the intemet protocol (IP) to offer quality of service (QoS) makes it a suitable core network protocol for next generation networks (NGN). The QoS features incorporated to IP will enable future lP-based wireless networks to meet QoS requirements of various multimedia traffic. The Differentiated Service (Diffserv) Architecture is a promising QoS technology due to its scalability which arises from traffic flow aggregates. For this reason, in this dissertation a network infrastructure based on DiffServ is assumed. This architecture provides assured service (AS) and premium servi

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Kabiwa, Tchokonte Maxime Stephane. "Development of an improved link metric for routing protocols in wireless ad-hoc networks." 2014. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001649.

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M. Tech. Electrical engineering.<br>Discusses the interference and bandwidth adjusted ETX routing metric uses a logical interference model that refers to the interference arising from the Carrier Sensing Multiple Access with Collision Avoidance (CSMA-CA) based Medium Access Control. This approach of capturing inter-flow is complex and more restrictive. In this dissertation, a more realistic and less restrictive approach based on the information available at the physical layer (signal strength) is used to capture the interference.In contrast to the logical interference model, this has the excel

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Mfupe, Luzango. "A transparent settlement model and network architecture for mobile voice over Internet protocol (VOIP) service provider." Thesis, 2011. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000631.

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M. Tech. Electrical Engineering.<br>A virtual Mobile Voice over IP (MVoIP) service can be implemented by a Mobile VoIP Operator (MVoIPO) in conjunction with a Mobile Network Operator (MNO). MVoIPOs do not operate their own mobile network infrastructure. Instead, they use the MNO's packet-based cellular network. However, the coexistence between the MVoIPO and the MNO raises two related problems: first, how to handle interconnection settlements, and second, how to (inter)connect the two operators to make such settlements. This dissertation uses a game-theoretic modelling approach to show that it

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Mazibuko, Thokozile Fortunate. "Application of synchrophasors in multi-machine power system transient stability analysis." 2014. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001340.

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M. Tech. Engineering: Electrical.<br>Discussing the developing an entirely software based synchrophasor platform for transient stability analysis of a multi-machine system by exploiting the possibility of distributing a precise time reference by means of communication networks and an open source software-only Precision Time Protocol (PTP) to synchronise PMUs and evaluates the precision of this synchronisation in the event of faults in a power system.

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Marais, Hester 1961. "Authority control in an academic library consortium using a union catalogue maintained by a central office for authority control." Thesis, 2004. http://hdl.handle.net/10500/2546.

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Authority control is the backbone of the library catalogue and therefore a critical library activity. Experienced staff create authority records to assist users in their quest for information. The focus of this study is on authority control as a means of co-operation in academic library consortia using a union catalogue maintained by a Central Office for Authority Control. Literature studies were conducted on three sub-problems: the development of academic library consortia in South Africa, and various forms, characteristics and functions of academic library consortia in general; the char

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Komu, Beth Njeri. "Formal verification of initial network entry protocols in wimax networks." 2012. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000636.

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M. Tech. Electrical Engineering.<br>Discusses the study as limited to the formal specification/modelling and formal verification of protocols proposed and applicable to the initial network entry procedure in WiMAX networks. Secondly, formal specification of the existing protocols under consideration will be based on their informal specification available in the literature and not on proprietary protocols for which little or no information is available. Thirdly, this research work does not intend to wipe out the state space explosion problem but rather applies existing optimization techniques t

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Motsi, Lovemore. "Information technology framework to enhance knowledge sharing for mathematics and science teachers." 2014. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001595.

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M. Tech. Business Information Systems<br>Information technology (IT) rapidity, and the pervasive implementation of new technologies in the education system, has tremendously improved the way teaching and learning is conducted. Institutions are being reshaped by the rapid provision of education services anytime, anywhere regardless of the constraint of space and geographical boundaries. This has enhanced collaboration among educators as well as their learners by sharing and disseminating of knowledge. However, this sharing of knowledge is still limited as educators have not fully exploited IT t

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Scholtz, Andrew. "Computer mediation in support of a constructivist learning strategy at an historically black university in Limpopo, South Africa." Thesis, 2005. http://hdl.handle.net/10413/1597.

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McKinnell, Lee-Anne. "A neural network based ionospheric model for the bottomside electron density profile over Grahamstown, South Africa /." 2002. http://eprints.ru.ac.za/24/.

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