Evolving an Efficient and Effective Off-the-Shelf Computing Infrastructure for Rural Communities of South Africa
- Authors: Siebörger, Ingrid , Terzoli, Alfredo , Hodgkinson-Williams, Cheryl
- Date: 2020
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/430990 , vital:72734 , https://doi.org/10.1007/978-3-030-52014-4_5
- Description: Information Communication Technologies (ICTs) have diffused into al-most every area of life for citizens living in the Global North. Data is seen as a key element in the fourth industrial revolution and is the foundation of Information, Knowledge and Wisdom. Knowledge has become the new “make or break” asset and an inability to access the world’s data and technologies that facilitate access, synthesis and inter-rogation of data places one at a disadvantage. In 2013, the Department of Communications in South Africa announced a new national broad-band policy to promote the reduction of a digital divide and sup-port citi-zens and the economy in digital interactions. Implementation has thus far not been successful. Furthermore, the Broadband policy does not address how South Africans are to access the Internet once available. The Siyakhula Living Lab (SLL) provides an example of a computing infrastructure model for the introduction of ICTs into rural communities. Through the deployment of “broadband islands” and low-cost compu-ting infrastructure to promote both knowledge creation and consump-tion, access to the proposed ubiquitous Internet connectivity can be un-locked. However, the initial computing infrastructure deployed to the SLL suffers from a single point of failure. In this paper, we discuss al-ternative computing infrastructure configurations that were tested and deployed within the SLL in order to determine a more appropriate com-puting infrastructure model for the SLL and potentially other rural South African communities; such that learners, teachers and community members can be active contributors and consumers of data, infor-mation, knowledge and wisdom.
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- Date Issued: 2020
Digital Inclusion: A model for e-Infrastructure and e-Services in Developing Countries
- Authors: Terzoli, Alfredo , Siebörger, Ingrid , Tsietsi, Mosiuoa , Gumbo, Sibukelo
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/430973 , vital:72733 , https://doi.org/10.1007/978-3-319-98827-6_7
- Description: A large portion of the South African population is still not connected in a productive manner to the Internet, despite the existence of a govern-ment plan for public broadband, ‘SA Connect’. One reason for this could be the lack of an appropriate model, through which connectivity can be diffused in a meaningful way through all areas of South Africa. This paper presents the model developed over more than a decade of experimentation in real life settings in the Siyakhula Living Lab, a joint venture between the universities of Rhodes and Fort Hare, South Afri-ca. The model proposes the ‘Broadband Island’ as basic e-infrastructure unit, which clusters nearby points-of-presence hosted in schools. In each Broadband Island is located an applications integra-tion platform, TeleWeaver, which monetizes channels of access to the local community, to support the e-infrastructure while providing useful services to the population and the Government.
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- Date Issued: 2018
Community ‘Broadband Islands’ for digital government access in rural South Africa
- Authors: Terzoli, Alfredo , Siebörger, Ingrid , Gumbo, Sibukelo
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/431248 , vital:72758 , https://www.academic-bookshop.com/ourshop/prod_6128029-ECDG-2017-PDF-Proceedings-of-the-17th-European-Conference-on-Digital-Government.html
- Description: In the developing world, one of the main obstacles to the realization of the potential of digital government in rendering services to citizens is the lack of access infrastructure. In this paper we present a model for the diffusion of Internet connectivity and access to computing infrastructure in rural communities in South Africa, through the aggregation of inde-pendent small and micro networks. The model is based on multi-year experimentation in the Siyakhula Living Lab, a long term joint venture between the Telkom Centres of Excellence hosted at Rhodes Universi-ty and the University of Fort Hare in South Africa. At the core of the model is the concept of ‘Broadband Island’, a high speed LAN realized through easy-to-deploy wireless technologies connecting groups of nearby schools. Each connected school, doubling as Digital Access Nodes for the community, hosts computing infrastructure in a serv-ers/thin clients configuration. Two schools belonging to the Broadband Island are then connected to the Internet with whatever technique makes sense within that specific geographical area: VSAT, microwave link, fibre etc. Each Broadband Island can be provisioned and support-ed by a variety of independent entities (such as Municipalities, Educa-tion Districts, NGOs, local action groups etc), possibly combined in con-sortia and in some cases using a Public Private Partnership format.
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- Date Issued: 2017
The network society: A model for computing infrastructure in South African schools
- Authors: Siebörger, Ingrid , Terzoli, Alfredo
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/430651 , vital:72706 , 10.1109/ISTAFRICA.2016.7530673
- Description: Worldwide computers are being used in schools for, amongst other things, developing the knowledge and skills required for citizens to be able to operate within the 21st Century Information Age. Realising the potential of technology in uplifting the lives of its citizens the South Afri-can government has proposed the National Broadband Plan (SA Con-nect). However, unfortunately this plan only addresses the networking aspect of Information Communication Technologies (ICTs). In this pa-per we investigate appropriate Information Technologies for schools in the light of SA Connect, and propose a model for the computing infra-structure required in South African schools in order to support access to and adoption of technology and networks. This model is based on our multi-year experimentation in the Siyakhula Living Lab.
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- Date Issued: 2016
A Comparison of Four End-User Devices as Thin Clients for Public Access to the Internet in Poor Communities
- Authors: Duff, Kevin , Siebörger, Ingrid , Terzoli, Alfredo
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/430892 , vital:72725 , https://doi.org/10.1007/978-3-319-16886-9_24
- Description: In poor areas, where ICT infrastructure is being deployed with devel-opmental aims, there is a need to provide appropriate, sustainable technologies that meet the needs of the local community. Current trends for ICT interventions favour the use of mobile user equipment, such as tablets and cellphones, but we think that they are inappropriate to allow production as opposed to mainly consumption of digital con-tent, at least for the foreseeable future. Thus our objective is to reduce the cost of deployment of traditional communal Internet Access Points using PCs. In this paper we compare four candidate computers to be used as thin clients in such settings, according to seven different cate-gories. Our study identifies the strengths, weaknesses and problems of each device, and concludes with recommendations for anybody wish-ing to deploy such devices as Linux Terminal Server Project (LTSP) thin clients in a public Internet Access Point.
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- Date Issued: 2015
Research Testbed Networks: Practical Tools for Service Delivery?
- Authors: Wertlen, Ronald R , Siebörger, Ingrid , Tsietsi, Mosiuoa , Shibeshi, Zelalem S , Terzoli, Alfredo
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/429204 , vital:72567 , https://doi.org/10.1002/j.1681-4835.2012.tb00351.x
- Description: The Telkom Centre of Excellence (CoE) at Rhodes University, housed in the Computer Science department was opened in 1997. The CoE's focus on Distributed multimedia service platforms soon showed that the technology being researched could be applied in the disadvantaged peri‐urban communities. The CoE has thus concentrated its research on building a testbed network that delivers real services to real users. In 2007, the testbed was extended to include a marginalised rural area in the Siyakhula Living Lab. The greatest factor in the sustainability of the CoE testbed network has been maintaining usefulness to all the stakeholders over the last 12 years. Industrial funding, University outreach goals and research goals could all be harmonised, while sustaining the delivery of high quality informatics services in the community. This paper presents a brief case study of the communications network testbed and how it was applied to the Development Informatics space. It analyses the roles played by stakeholders in either assisting and sustaining or obstructing the service delivery. It makes key recommendations on best practices for research networks that can also bring informatics to disadvantaged communities. It shows how testbeds for the research of new technologies can be designed so as to allow Development Informatics work to take place on such networks.
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- Date Issued: 2012
LTSP DNS round robin clusters: green technology access enablers for telecommunication services in marginalised communities
- Authors: Siebörger, Ingrid , Terzoli, Alfredo , Hodgkinson-Williams, Cheryl
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428437 , vital:72511 , https://d1wqtxts1xzle7.cloudfront.net/75984640/177-libre.pdf?1639074275=andresponse-content-disposi-tion=inline%3B+filename%3DLTSP_DNS_Round_Robin_Clusters_Green_Tech.pdfandExpires=1714912779andSignature=Gmd52OTCvGmiKhiFiQH~rrfp6lSPbp7glndLPn7V4Jy5yt7lU-eToE4IPxr7lDQQOdUW348nkXIMgYHnXkWjWl7nYBM7hlluxJGd15oKbpifvTofHVVEB-kOLbz0caOrAodnS~eMHdebRQOumKSAHPGQkqem756vbw0KV7bhmFQ0TUN-vsVeBoH5ftfg7s355Oh9EZCQhZu~~P0AWzlSRnMTH~6vpj3EKvp7P4gy55oISZ~207VFFFZidb90aoP7JWehRYjRqn3Tk19A6nwm4o9U-wc9Dz1MrCy-YfbqOxdNulQh4bti2WI7DA6C3Q8TMCbtqnZskXQYsIzfEianS~gw__andKey-Pair-Id=APKAJLOHF5GGSLRBV4ZA
- Description: Rural development is seen as a priority in South Africa; information and knowledge are key strategic resources for social and economic develop-ment. Information Communication Technologies (ICTs) are seen as im-portant tools in rural development, assisting in enabling change through economic development. In rural areas where ICT infrastructure is being expanded and deployed there is a need to provide appropriate technolo-gies that support sustainability and meet the needs of the local communi-ty. In this paper we argue that the use of Linux Terminal Server Project (LTSP) cluster servers are appropriate technologies for use in computer laboratory environments for relatively inexpensive access to technologies by schools and local communities in rural areas. Typically LTSP clusters are deployed when there is a need to support 100s or 1000s of comput-ers, however, we argue that by reusing recycled (older) desktop or server computers as cluster servers could lower the entry level costs of LTSP computing while maximising the use of available resources. The paper details the configuration of a Domain Name System (DNS) round robin cluster solution together with initial testing and results. It is suggested that LTSP cluster solutions, and the DNS round robin implementation, show promise for use in providing access technologies to rural communities and schools.
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- Date Issued: 2011
Bandwidth management and monitoring for community networks
- Authors: Irwin, Barry V W , Siebörger, Ingrid , Wells, Daniel
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428040 , vital:72482 , https://www.researchgate.net/profile/Ingrid-Sieboerger/publication/265121154_Bandwidth_management_and_monitoring_for_community_networks/links/5e538b85458515072db7a686/Bandwidth-management-and-monitoring-for-community-networks.pdf
- Description: This paper describes a custom-built system to replace existing routing solutions within an identified community network. The community net-work in question shares a VSAT Internet connection to provide Internet access to a number of schools and their surrounding communities. This connection provides a limited resource which needs to be managed in order to ensure equitable use by members of the community. The community network originally lacked any form of bandwidth manage-ment or monitoring which often resulted in unfair use and abuse. The solution implemented is based on a client-server architecture. The Community Access Points (CAPs) are the client components which are located at each school; providing the computers and servers with ac-cess to the rest of the community network and the Internet. These nodes also perform a number of monitoring tasks for the computers at the schools. The server component is the Access Concentrator (AC) and connects the CAPs together using encrypted and authenticated PPPoE tunnels. The AC performs several additional monitoring func-tions, both on the individual links and on the upstream Internet connec-tion. The AC provides a means of effectively and centrally managing and allocating Internet bandwidth between the schools. The system that was developed has a number of features, including Quality of Service adjustments limiting network usage and fairly billing each school for their Internet use. The system provides an effective means for sharing bandwidth between users in a community network.
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- Date Issued: 2010
The development of ICT networks for South African schools: Two pilot studies in disadvantaged areas
- Authors: Siebörger, Ingrid , Terzoli, Alfredo , Hodgkinson-Williams, Cheryl
- Date: 2008
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/431018 , vital:72737 , https://doi.org/10.1007/978-0-387-09729-9_25
- Description: Information and Communication Technologies (ICTs) are increasingly considered valuable tools in educa-tion, promoting the development of higher cognitive processes and allowing teachers and learners access to a plethora of information. This paper reports on two pilot studies conducted in South Africa in proto-typical previously disadvantaged schools and their surrounding communities. Each pilot study deployed a local loop network within impoverished communi-ties, connecting schools to one another and central services such as email and voice communications. The benefits of these networks were that teachers, learners and the local community had access to in-formation, and communication and collaboration channels, providing potential test beds for investigat-ing the use of computers as mind tools.
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- Date Issued: 2008
Enabling and constraining ICT practice in secondary schools: case studies in South Africa
- Authors: Hodgkinson-Williams, Cheryl , Siebörger, Ingrid , Terzoli, Alfredo
- Date: 2007
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428923 , vital:72546 , https://www.inderscienceonline.com/doi/epdf/10.1504/IJKL.2007.015551
- Description: The use of Information Communication Technology (ICT) in education is being seen as a way of widening access to education, particularly in developing countries. This paper addresses the issue of ICT implemen-tation in secondary schools and focuses specifically on the practices that enable or constrain the successful implementation of ICT for teach-ing and learning activities. It reflects upon the lessons learned from a collective case study undertaken in 12 of the 13 secondary schools in Grahamstown in the Eastern Cape in South Africa. School principals and designated IT teachers were interviewed and on-site infrastructure audits conducted. This paper identifies a number of key enabling and constraining factors surrounding practical issues, including sufficient hardware, appropriate software and affordable connectivity, sufficient technical support and training, policy-related issues such as the role of national, provincial and school policy, the vital contribution of principal leadership and champion teachers as well as ongoing teacher profes-sional development coupled with a willingness to change.
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- Date Issued: 2007
Field testing the Alvarion BreezeMAX as a last mile access technology
- Authors: Siebörger, Ingrid , Terzoli, Alfredo
- Date: 2007
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428520 , vital:72517 , https://www.researchgate.net/profile/Ingrid-Sieboerger/publication/255048217_Field_testing_the_Alvarion_BreezeMAX_as_a_last_mile_access_technology/links/53ff2f290cf21edafd15bfad/Field-testing-the-Alvarion-BreezeMAX-as-a-last-mile-access-technology.pdf
- Description: With an alarmingly low teledensity of approximately 12% in South Afri-ca, and not much hope of further wired infrastructure at the local loop level–as the costs incurred are high compared to potential revenue–wireless connectivity could be a great asset and service in South Africa. This paper looks at how WiMAX technologies, and specifically the Al-varion BreezeMAX, could be used in providing much needed telecom-munications infrastructure to both rural and urban areas in South Africa, providing broadband data throughput rates together with excellent net-work reliability and low latency.
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- Date Issued: 2007