A best practice framework for web accessibility in South Africa
- Authors: Booyens, Ryno
- Date: 2018
- Subjects: World Wide Web , Web sites , Computer networks
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/493238 , uj:45078
- Description: Abstract: Please refer to full text to view abstract. , M.Sc. (Informatics)
- Full Text:
- Authors: Booyens, Ryno
- Date: 2018
- Subjects: World Wide Web , Web sites , Computer networks
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/493238 , uj:45078
- Description: Abstract: Please refer to full text to view abstract. , M.Sc. (Informatics)
- Full Text:
Securing host and application information in the TCP/IP protocol suite
- Authors: Boshoff, Paul Marthinus
- Date: 2012-08-14
- Subjects: TCP/IP (Computer network protocol) , Computer networks , Computer networks -- Security measures , Data encryption (Computer science)
- Type: Thesis
- Identifier: uj:9224 , http://hdl.handle.net/10210/5673
- Description: M.Sc. , Using the Internet for communication purposes constitutes a high risk, considering the security of such information. The protocol suite used on the Internet is the TCP/IP protocol suite, which consists of the Transmission Control Protocol (TCP) and the Internet Protocol (IP). In a bid to create a basis to support the newly conceptualised ideas, various areas of networking are briefly discussed in this dissertation. The first in this series of areas is that of the OSI layers. This model forms the basis of all networking concepts. The model describes seven layers, of which each performs a certain networking function. The TCP/IP protocol suite fits into this model. Network security and encryption methods are applied and followed to secure information on the Internet. These methods have been used over a long period of time and will also be used to support the newly conceptualised ideas. The main focus of this dissertation falls on the securing of certain parts of the information contained in the headers of both the Transmission Control Protocol (TCP) and the Internet Protocol (IP) in a bid to minimise the amount of data that may be inferred about the communicating parties from these headers. In addition, where multiple routes exist between hosts, the possibility of the deliberate distribution of a single message across these routes is examined. Such distribution will further complicate the task of a hacker attempting to gather information from TCP and IP headers. In addition, such distribution will minimise the possibility that a hacker may assemble a complete message from its constituent parts and that he/she may infer information about the message that cannot be inferred from the isolated parts. The length of a message sent between hosts is one simple example of such information.
- Full Text:
- Authors: Boshoff, Paul Marthinus
- Date: 2012-08-14
- Subjects: TCP/IP (Computer network protocol) , Computer networks , Computer networks -- Security measures , Data encryption (Computer science)
- Type: Thesis
- Identifier: uj:9224 , http://hdl.handle.net/10210/5673
- Description: M.Sc. , Using the Internet for communication purposes constitutes a high risk, considering the security of such information. The protocol suite used on the Internet is the TCP/IP protocol suite, which consists of the Transmission Control Protocol (TCP) and the Internet Protocol (IP). In a bid to create a basis to support the newly conceptualised ideas, various areas of networking are briefly discussed in this dissertation. The first in this series of areas is that of the OSI layers. This model forms the basis of all networking concepts. The model describes seven layers, of which each performs a certain networking function. The TCP/IP protocol suite fits into this model. Network security and encryption methods are applied and followed to secure information on the Internet. These methods have been used over a long period of time and will also be used to support the newly conceptualised ideas. The main focus of this dissertation falls on the securing of certain parts of the information contained in the headers of both the Transmission Control Protocol (TCP) and the Internet Protocol (IP) in a bid to minimise the amount of data that may be inferred about the communicating parties from these headers. In addition, where multiple routes exist between hosts, the possibility of the deliberate distribution of a single message across these routes is examined. Such distribution will further complicate the task of a hacker attempting to gather information from TCP and IP headers. In addition, such distribution will minimise the possibility that a hacker may assemble a complete message from its constituent parts and that he/she may infer information about the message that cannot be inferred from the isolated parts. The length of a message sent between hosts is one simple example of such information.
- Full Text:
The influence of an ERP system on the value chain process of multinational enterprises (MNEs)
- Authors: Bosombo, Folo-Ralph
- Date: 2009-03-20T09:57:50Z
- Subjects: Business enterprises , Computer networks , Information technology management
- Type: Thesis
- Identifier: uj:8218 , http://hdl.handle.net/10210/2286
- Description: M.A. , The study set out to assess the influence of enterprise resource planning (ERP) system software on the value chain process of multinational enterprises (MNEs). This was achieved through the literature review that addressed the relation between the value chain approach as a strategic tool and ERP system theory. The ERP system is positioned as a total solution for the MNE, and it contains the best business practices that are derived from the various generic business functions of the value chain architecture and configuration. A set of research hypotheses was developed, which were tested in accordance with the research methodology and the design issues for the qualitative study. The different chapters evolved along with a case study of an ERP system, namely Axapta software. For the quantitative study, preliminary interviews were conducted to select the MNEs that use SAP software. Thereafter a self-administered survey was applied relating to the strategy and the value chain integration through the ERP system to the MNE's ERP system users. The research results in the qualitative study show that for ERP software to integrate the MNE's functional activities and processes in the value chain system globally and effectively, it has to position itself as a value chain system with e-business mechanisms. In addition it has to suit the global ERP characteristics as an information interchange, sharing and service. It has to be a flexible and comprehensive, modular, open, integrated and multifunctional system, with an option to customisation in selecting modules that best suit the MNE's management to craft its business's activities. The above was proved through the analyses of Axapta software attributes by means of a technical strategic planning tool, namely the value chain approaches, and the strategic supply chain factors for ERP software evaluation. Axapta software met the requirements of a general and global ERP system model and it is indeed a value chain system. The following statement can be cited as the most important findings of the qualitative study: For the MNE to derive value from ERP system integration and utilisation, the strategic information technology (IT) plan has to be formulated and followed in order to measure the beneficial cost and efficiency of implementing the ERP system, and to assess the suitability of ERP software during the selection process in accordance with the MNE's objectives that will facilitate the success of ERP implementation usage. ERP software adopted for the MNE has to include the international architecture and configuration types that align with the MNE’s strategy and Internet application. This must include all the necessary value chain functional modules relating to the ERP system as an integrating tool that will influence the MNE to align its strategy to gain ii competitive advantage. Consequently, such an ERP system will allow the MNE to strengthen and integrate all its applications and activities in the value chain system. As a result the different organisational suppliers and partners must be linked with the MNE's value chain system to enhance the operational sites' users to operate efficiently, more reliably and in co-ordination with the MNE. The necessary information and data must be available across the entire organisation's system from the trading partners to the customers so that they can be satisfied on with the necessary urgency. In the statistical analysis conducted from the self-administered survey, the major finding is the positive view of the employers and employees of the customisation of ERP, i.e. SAP software, which helps MNEs to craft the software according to their objectives and with the use of a strategic IT plan. In conclusion the study highlighted the inseparability of ERP system theory from the value chain approaches. Therefore, the study came to position ERP system theoretically as an evaluative tool and technically as a value chain system that becomes an evaluative tool for ERP software activities assessment. Moreover the study pointed out the importance of the use of a strategic IT plan within the MNE. However, the main contribution and value of this study is obviously to assist any MNE in the process of migrating business systems. The methodical approach facilitates the selection and the evaluation of ERP software requirements within an organisation, which can meet its growth targets and objectives. Thus, the strategic supply chain factors for ERP software evaluation and the application of the value chain approaches discussed in this study will contribute to the acquisition of fit and compatible ERP software. The choice of the right ERP software will definitely allow MNEs to derive the benefits of the ERP system across its entire value chain sites (nationally and internationally). It can be concluded from this study that any organisation wanting to invest in ERP system implementation must apply the methodical approach formulated in this study by the researcher. It is recommended that the assessment of an ERP system's modular and functional activities, together with the organisation's value chain activities, be given priority before the acquisition and adoption of the ERP system.
- Full Text:
- Authors: Bosombo, Folo-Ralph
- Date: 2009-03-20T09:57:50Z
- Subjects: Business enterprises , Computer networks , Information technology management
- Type: Thesis
- Identifier: uj:8218 , http://hdl.handle.net/10210/2286
- Description: M.A. , The study set out to assess the influence of enterprise resource planning (ERP) system software on the value chain process of multinational enterprises (MNEs). This was achieved through the literature review that addressed the relation between the value chain approach as a strategic tool and ERP system theory. The ERP system is positioned as a total solution for the MNE, and it contains the best business practices that are derived from the various generic business functions of the value chain architecture and configuration. A set of research hypotheses was developed, which were tested in accordance with the research methodology and the design issues for the qualitative study. The different chapters evolved along with a case study of an ERP system, namely Axapta software. For the quantitative study, preliminary interviews were conducted to select the MNEs that use SAP software. Thereafter a self-administered survey was applied relating to the strategy and the value chain integration through the ERP system to the MNE's ERP system users. The research results in the qualitative study show that for ERP software to integrate the MNE's functional activities and processes in the value chain system globally and effectively, it has to position itself as a value chain system with e-business mechanisms. In addition it has to suit the global ERP characteristics as an information interchange, sharing and service. It has to be a flexible and comprehensive, modular, open, integrated and multifunctional system, with an option to customisation in selecting modules that best suit the MNE's management to craft its business's activities. The above was proved through the analyses of Axapta software attributes by means of a technical strategic planning tool, namely the value chain approaches, and the strategic supply chain factors for ERP software evaluation. Axapta software met the requirements of a general and global ERP system model and it is indeed a value chain system. The following statement can be cited as the most important findings of the qualitative study: For the MNE to derive value from ERP system integration and utilisation, the strategic information technology (IT) plan has to be formulated and followed in order to measure the beneficial cost and efficiency of implementing the ERP system, and to assess the suitability of ERP software during the selection process in accordance with the MNE's objectives that will facilitate the success of ERP implementation usage. ERP software adopted for the MNE has to include the international architecture and configuration types that align with the MNE’s strategy and Internet application. This must include all the necessary value chain functional modules relating to the ERP system as an integrating tool that will influence the MNE to align its strategy to gain ii competitive advantage. Consequently, such an ERP system will allow the MNE to strengthen and integrate all its applications and activities in the value chain system. As a result the different organisational suppliers and partners must be linked with the MNE's value chain system to enhance the operational sites' users to operate efficiently, more reliably and in co-ordination with the MNE. The necessary information and data must be available across the entire organisation's system from the trading partners to the customers so that they can be satisfied on with the necessary urgency. In the statistical analysis conducted from the self-administered survey, the major finding is the positive view of the employers and employees of the customisation of ERP, i.e. SAP software, which helps MNEs to craft the software according to their objectives and with the use of a strategic IT plan. In conclusion the study highlighted the inseparability of ERP system theory from the value chain approaches. Therefore, the study came to position ERP system theoretically as an evaluative tool and technically as a value chain system that becomes an evaluative tool for ERP software activities assessment. Moreover the study pointed out the importance of the use of a strategic IT plan within the MNE. However, the main contribution and value of this study is obviously to assist any MNE in the process of migrating business systems. The methodical approach facilitates the selection and the evaluation of ERP software requirements within an organisation, which can meet its growth targets and objectives. Thus, the strategic supply chain factors for ERP software evaluation and the application of the value chain approaches discussed in this study will contribute to the acquisition of fit and compatible ERP software. The choice of the right ERP software will definitely allow MNEs to derive the benefits of the ERP system across its entire value chain sites (nationally and internationally). It can be concluded from this study that any organisation wanting to invest in ERP system implementation must apply the methodical approach formulated in this study by the researcher. It is recommended that the assessment of an ERP system's modular and functional activities, together with the organisation's value chain activities, be given priority before the acquisition and adoption of the ERP system.
- Full Text:
Revisiting the society of mind : convolutional neural networks via multi-agent systems
- Authors: Cullinan, Michéle Narda
- Date: 2018
- Subjects: Neural networks (Computer science) , Computer networks
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/292562 , uj:31795
- Description: Abstract: Multi-core processors, cheaper computer networks and the data deluge from the internet allow larger and better models to be built using Deep Learning architectures. Distributed Artificial Intelligence with agent-based programming is a paradigm for constructing such models. Many Neural Networks are implemented in a single thread of control, negating their benefits. An actor-oriented approach leverages the inherent parallelism of such architectures. The relationship between object-oriented and multi-agent paradigms is discussed in this dissertation. In addition, constraints on concurrency are discussed with reference to implementing such systems via the Actor Model in the form of the Akka toolkit. The proposed actor model is applied to a Supervised Learning classification problem using Convolutional Neural Networks. Since the architecture of a Convolutional Network allows computations to be parallelised, it is suited to the concurrent and distributed programming paradigm. Performance and accuracy of the model is evaluated using Receiver Operating Characteristic (ROC) curve analysis, confusion matrices and cost function plots. Performance of the model is compared and evaluated next to existing implementations of Convolutional Neural Networks using confidence intervals of model statistics and hypothesis testing. , M.Sc.
- Full Text:
- Authors: Cullinan, Michéle Narda
- Date: 2018
- Subjects: Neural networks (Computer science) , Computer networks
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/292562 , uj:31795
- Description: Abstract: Multi-core processors, cheaper computer networks and the data deluge from the internet allow larger and better models to be built using Deep Learning architectures. Distributed Artificial Intelligence with agent-based programming is a paradigm for constructing such models. Many Neural Networks are implemented in a single thread of control, negating their benefits. An actor-oriented approach leverages the inherent parallelism of such architectures. The relationship between object-oriented and multi-agent paradigms is discussed in this dissertation. In addition, constraints on concurrency are discussed with reference to implementing such systems via the Actor Model in the form of the Akka toolkit. The proposed actor model is applied to a Supervised Learning classification problem using Convolutional Neural Networks. Since the architecture of a Convolutional Network allows computations to be parallelised, it is suited to the concurrent and distributed programming paradigm. Performance and accuracy of the model is evaluated using Receiver Operating Characteristic (ROC) curve analysis, confusion matrices and cost function plots. Performance of the model is compared and evaluated next to existing implementations of Convolutional Neural Networks using confidence intervals of model statistics and hypothesis testing. , M.Sc.
- Full Text:
Vergelyking van transaksie verwerkers in 'n oop, verspreide omgewing
- Du Plessis, Jacobus Nicolaas
- Authors: Du Plessis, Jacobus Nicolaas
- Date: 2015-03-17
- Subjects: Electronic data processing - Distributed processing , Computer networks
- Type: Thesis
- Identifier: uj:13429 , http://hdl.handle.net/10210/13466
- Description: M.Sc. (Computer Science) , Please refer to full text to view abstract
- Full Text:
- Authors: Du Plessis, Jacobus Nicolaas
- Date: 2015-03-17
- Subjects: Electronic data processing - Distributed processing , Computer networks
- Type: Thesis
- Identifier: uj:13429 , http://hdl.handle.net/10210/13466
- Description: M.Sc. (Computer Science) , Please refer to full text to view abstract
- Full Text:
Performance of asymmetrically clipped optical OFDM and DC-biased optical OFDM based on fast Fourier transform/discrete Hartley transform for powerline communication-visible light communication systems under impulsive noise
- Authors: Mapfumo, Irvine
- Date: 2020
- Subjects: Electric lines - Carrier transmission , Signal processing - Digital techniques , Wireless communication systems , Computer networks
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/480256 , uj:43468
- Description: Abstract: Hybrid PLC-VLC systems have generated a lot of research attention lately due to high data speeds and low implementation costs they offer. Owing to the increased number of devices connected to the internet, there has been an abrupt rise of data congestion in the RF spectrum, hence there is need to relieve it to allow high speed data communication access. Research output has provided evidence that PLC and VLC technologies can be integrated successfully to provide an alternate and cost-effective solution to relieve the RF spectrum... , M.Ing. (Electrical and Electronic Engineering Science)
- Full Text:
- Authors: Mapfumo, Irvine
- Date: 2020
- Subjects: Electric lines - Carrier transmission , Signal processing - Digital techniques , Wireless communication systems , Computer networks
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/480256 , uj:43468
- Description: Abstract: Hybrid PLC-VLC systems have generated a lot of research attention lately due to high data speeds and low implementation costs they offer. Owing to the increased number of devices connected to the internet, there has been an abrupt rise of data congestion in the RF spectrum, hence there is need to relieve it to allow high speed data communication access. Research output has provided evidence that PLC and VLC technologies can be integrated successfully to provide an alternate and cost-effective solution to relieve the RF spectrum... , M.Ing. (Electrical and Electronic Engineering Science)
- Full Text:
Development of effective cuckoo search algorithms for optimisation purposes
- Authors: Mareli, Mahlaku
- Date: 2018
- Subjects: Computational intelligence , Computer algorithms , Mathematical optimization - Data processing , Computer networks
- Language: English
- Type: Doctoral (Thesis)
- Identifier: http://hdl.handle.net/10210/295009 , uj:32110
- Description: Abstract: Optimisation, the process of finding either a maximum of a minimum of the problem at hand plays a key role in several disciplines including engineering and science. In this thesis, different Cuckoo Search algorithms are developed for effective optimisation purposes. These algorithms are tested on ten mathematical test functions and then used to optimise a Back-Propagation Neural Network used for short-term electricity load forecasting for South African data, with the focus on the City of Johannesburg. The original Cuckoo Search algorithm is based on random walk step sizes derived from Lévy probability distribution and the switching parameter between local and global random walks is constant. However, other probability distributions like Cauchy, Gaussian and Gamma have also been used and the switching parameter can be changed dynamically. The first contribution of the thesis is the development a new Cuckoo Search algorithm whose random step sizes are derived from Pareto probability distribution function. This new Pareto-based Cuckoo Search algorithm is tested on ten benchmark test functions together with other Cuckoo Search algorithms using step sizes derived from Gaussian, Cauchy, Gamma and Lévy probability density functions. When using the confidence interval analysis, the Lévy-based Cuckoo Search algorithm outperforms the Pareto based Cuckoo. However, confidence interval results are only superior due to only one test function whereby Lévy-based Cuckoo Search performed well. Moreover, the Pareto-based Cuckoo shows superior performance in comparison to the other algorithms, leading in seven test functions out of ten when tested for convergence. The second contribution is the implementation of Cuckoo Search algorithms with dynamically increasing switching parameters between local and random walks. The first improvement done on Cuckoo Search algorithm is the implementation of linear increasing switching parameter, the second is the implementation of power increasing switching parameter and the third improvement is the implementation of exponential increasing switching parameter. When tested on benchmark test functions, the exponentially increasing Cuckoo Search algorithm outperforms the other algorithms by obtaining the longest confidence interval of 4.50566 while the next algorithm (original Cuckoo Search) obtains an interval of 3.9699. Moreover, using convergence plots, both... , D.Ing. (Electrical and Electronic Engineering)
- Full Text:
- Authors: Mareli, Mahlaku
- Date: 2018
- Subjects: Computational intelligence , Computer algorithms , Mathematical optimization - Data processing , Computer networks
- Language: English
- Type: Doctoral (Thesis)
- Identifier: http://hdl.handle.net/10210/295009 , uj:32110
- Description: Abstract: Optimisation, the process of finding either a maximum of a minimum of the problem at hand plays a key role in several disciplines including engineering and science. In this thesis, different Cuckoo Search algorithms are developed for effective optimisation purposes. These algorithms are tested on ten mathematical test functions and then used to optimise a Back-Propagation Neural Network used for short-term electricity load forecasting for South African data, with the focus on the City of Johannesburg. The original Cuckoo Search algorithm is based on random walk step sizes derived from Lévy probability distribution and the switching parameter between local and global random walks is constant. However, other probability distributions like Cauchy, Gaussian and Gamma have also been used and the switching parameter can be changed dynamically. The first contribution of the thesis is the development a new Cuckoo Search algorithm whose random step sizes are derived from Pareto probability distribution function. This new Pareto-based Cuckoo Search algorithm is tested on ten benchmark test functions together with other Cuckoo Search algorithms using step sizes derived from Gaussian, Cauchy, Gamma and Lévy probability density functions. When using the confidence interval analysis, the Lévy-based Cuckoo Search algorithm outperforms the Pareto based Cuckoo. However, confidence interval results are only superior due to only one test function whereby Lévy-based Cuckoo Search performed well. Moreover, the Pareto-based Cuckoo shows superior performance in comparison to the other algorithms, leading in seven test functions out of ten when tested for convergence. The second contribution is the implementation of Cuckoo Search algorithms with dynamically increasing switching parameters between local and random walks. The first improvement done on Cuckoo Search algorithm is the implementation of linear increasing switching parameter, the second is the implementation of power increasing switching parameter and the third improvement is the implementation of exponential increasing switching parameter. When tested on benchmark test functions, the exponentially increasing Cuckoo Search algorithm outperforms the other algorithms by obtaining the longest confidence interval of 4.50566 while the next algorithm (original Cuckoo Search) obtains an interval of 3.9699. Moreover, using convergence plots, both... , D.Ing. (Electrical and Electronic Engineering)
- Full Text:
Using formal languages in data communications protocols
- Authors: Mulder, Petrus Gerhardus
- Date: 2014-05-19
- Subjects: Formal languages , Computer network protocols , Computer networks
- Type: Thesis
- Identifier: uj:11124 , http://hdl.handle.net/10210/10711
- Description: D.Phil. (Computer Science) , Please refer to full text to view abstract
- Full Text:
- Authors: Mulder, Petrus Gerhardus
- Date: 2014-05-19
- Subjects: Formal languages , Computer network protocols , Computer networks
- Type: Thesis
- Identifier: uj:11124 , http://hdl.handle.net/10210/10711
- Description: D.Phil. (Computer Science) , Please refer to full text to view abstract
- Full Text:
Assessment of the e-readiness of small and medium sized enterprises in the ICT sector in Botswana, with special reference to information access
- Authors: Mutula, Stephen M.
- Date: 2009-01-12T07:22:41Z
- Subjects: Small business , Electronic information resources , Electronic commerce , Business enterprises , Computer networks , Botswana
- Type: Thesis
- Identifier: uj:14776 , http://hdl.handle.net/10210/1854
- Description: D.Litt. et Phil. , The purpose of this research was to determine the status of e-readiness of Small and Medium-Sized enterprises (SMEs) in the ICT sector in Botswana with respect to information access using ICTs for competitiveness in the local and international markets. The population of study consisted of key informants from 114 SMEs in the ICT sector in Gaborone and Francistown, the capital city and the second largest city of Botswana respectively. The official list of ICT companies provided by the government of Botswana was used as the sampling frame. The research used a two-phase design - the preliminary survey and the main survey of the project. The preliminary survey consisted of two stages. During the first stage, a short structured questionnaire was administered to a census of 114 key informants from SMEs in the ICT sector. During the second stage, six focus group discussions were used to collect data from key stakeholders in the ICT sector who included representatives from: ICT companies, ICT professional body in Botswana, government utility corporations, academia and the business community. The participants in the focus group discussions involved representatives from 55 SMEs who were identified like in the first stage using the government official list of SMEs in Botswana. The quantitative data collected through questionnaire were analysed using SPSS while the qualitative data collected through focus group discussions and in-depth interviews were analysed using thematic tables. The results were represented using tables, pie charts, categories and narrations. The results of the preliminary survey of the project were used to characterise the ICT sector in terms of its size, key players, nature of businesses, products and services traded in, distribution of business by location and the issues that affected the sector. This characterisation was important in two main respects. Firstly, it provided a clear roadmap for the design of the main survey of the research since little information existed on the subject of e-readiness on Botswana in general and with respect to SMEs in particular. Similarly, the government had invested a lot of resources in ICT infrastructure development and was focusing on SMEs especially those in the ICT sector to diversify the economy from the dominant diamond mining to service industry. Secondly, the results of the preliminary survey of the project supported the development of a structured interview schedule that was used during the main survey of the project. During the main survey of the research data was collected from companies that participated in the focus group discussions. From the focus group list of participants, an alphabetical name list of 55 SMEs was created. There were 43 Small-Sized and 12 Medium-Sized enterprises that were represented during the focus group discussions. For the purpose of carrying out the structured interviews, SMEs were stratified into two (Small-Sized enterprises and Medium-Sized enterprises). From the Small-Sized enterprises stratum, 20 companies were systematically selected (from the 43) taking every other member on the list. On the other hand, in the Medium-Sized enterprises stratum, all the 12 enterprises were selected for interviews because the number of respondents was small. The data collected was analysed using categories and thematic tables because it was largely qualitative. The results were presented in the form of thematic tables and through narrations. The findings from the SMEs surveyed indicated that most of the SMEs in the ICT sector in Botswana were Small-Sized enterprises that were largely not e-ready to participate in the global electronic business environment because of several impediments such as: the lack of awareness, inadequate policy and legislative framework, poor telecommunication and electricity infrastructures, poor e-commerce infrastructure, inadequate government support, the lack of access to credit, investment barriers, the lack of critical ICT skills and more. The major outcomes of the project include an exposition of the e-readiness status of SMEs in the ICT sector in Botswana, a road map that can assist the government of Botswana to establish a strong export-oriented ICT sector. The weaknesses and strengths of Botswana’s e-readiness status with regard to SMEs are brought to the fore, thus creating awareness upon which the government can design interventions that are tailored to meet Botswana’s SMEs’ specific needs. Similarly, this project provides a framework upon which the government can benchmark against its counterparts in the rest of the world in order to define its investment priorities. The project also provides baseline information which the government could use to implement appropriate policy and legislative decisions in order to enhance the e-readiness of SMEs in the ICT sector in Botswana. Finally, the new integrated e-readiness tool that was developed in this project is the first of its kind to bring the different major components of e-readiness (such as enterprise, ICT, human resources, information and external environment readiness) into a single assessment tool with great attention paid to information access. The tool is also modular in design and thus can allow specific e-readiness assessment of individual segments of society to be modelled independently of each other. The tool also enriches the qualitative aspects of e-readiness that are only minimally addressed in a few of the existing macro e-readiness assessment tools. Among the key recommendations from the research is the need for the government of Botswana to promulgate relevant policies and implement pragmatic programmes that would enable SMEs in the ICT sector in the country to use various information technologies in order to gain access to relevant information regarding access to credit, investment opportunities, partnerships, education and training opportunities so that they can effectively participate in both the local and international markets. The policy changes and programmes to be undertaken by the government should be underpinned by an effective legislative and regulatory framework that would enable the small business firms to identify, acquire, process, organise, disseminate and apply information for competitive advantage through the effective deployment and application of ICTs.
- Full Text:
- Authors: Mutula, Stephen M.
- Date: 2009-01-12T07:22:41Z
- Subjects: Small business , Electronic information resources , Electronic commerce , Business enterprises , Computer networks , Botswana
- Type: Thesis
- Identifier: uj:14776 , http://hdl.handle.net/10210/1854
- Description: D.Litt. et Phil. , The purpose of this research was to determine the status of e-readiness of Small and Medium-Sized enterprises (SMEs) in the ICT sector in Botswana with respect to information access using ICTs for competitiveness in the local and international markets. The population of study consisted of key informants from 114 SMEs in the ICT sector in Gaborone and Francistown, the capital city and the second largest city of Botswana respectively. The official list of ICT companies provided by the government of Botswana was used as the sampling frame. The research used a two-phase design - the preliminary survey and the main survey of the project. The preliminary survey consisted of two stages. During the first stage, a short structured questionnaire was administered to a census of 114 key informants from SMEs in the ICT sector. During the second stage, six focus group discussions were used to collect data from key stakeholders in the ICT sector who included representatives from: ICT companies, ICT professional body in Botswana, government utility corporations, academia and the business community. The participants in the focus group discussions involved representatives from 55 SMEs who were identified like in the first stage using the government official list of SMEs in Botswana. The quantitative data collected through questionnaire were analysed using SPSS while the qualitative data collected through focus group discussions and in-depth interviews were analysed using thematic tables. The results were represented using tables, pie charts, categories and narrations. The results of the preliminary survey of the project were used to characterise the ICT sector in terms of its size, key players, nature of businesses, products and services traded in, distribution of business by location and the issues that affected the sector. This characterisation was important in two main respects. Firstly, it provided a clear roadmap for the design of the main survey of the research since little information existed on the subject of e-readiness on Botswana in general and with respect to SMEs in particular. Similarly, the government had invested a lot of resources in ICT infrastructure development and was focusing on SMEs especially those in the ICT sector to diversify the economy from the dominant diamond mining to service industry. Secondly, the results of the preliminary survey of the project supported the development of a structured interview schedule that was used during the main survey of the project. During the main survey of the research data was collected from companies that participated in the focus group discussions. From the focus group list of participants, an alphabetical name list of 55 SMEs was created. There were 43 Small-Sized and 12 Medium-Sized enterprises that were represented during the focus group discussions. For the purpose of carrying out the structured interviews, SMEs were stratified into two (Small-Sized enterprises and Medium-Sized enterprises). From the Small-Sized enterprises stratum, 20 companies were systematically selected (from the 43) taking every other member on the list. On the other hand, in the Medium-Sized enterprises stratum, all the 12 enterprises were selected for interviews because the number of respondents was small. The data collected was analysed using categories and thematic tables because it was largely qualitative. The results were presented in the form of thematic tables and through narrations. The findings from the SMEs surveyed indicated that most of the SMEs in the ICT sector in Botswana were Small-Sized enterprises that were largely not e-ready to participate in the global electronic business environment because of several impediments such as: the lack of awareness, inadequate policy and legislative framework, poor telecommunication and electricity infrastructures, poor e-commerce infrastructure, inadequate government support, the lack of access to credit, investment barriers, the lack of critical ICT skills and more. The major outcomes of the project include an exposition of the e-readiness status of SMEs in the ICT sector in Botswana, a road map that can assist the government of Botswana to establish a strong export-oriented ICT sector. The weaknesses and strengths of Botswana’s e-readiness status with regard to SMEs are brought to the fore, thus creating awareness upon which the government can design interventions that are tailored to meet Botswana’s SMEs’ specific needs. Similarly, this project provides a framework upon which the government can benchmark against its counterparts in the rest of the world in order to define its investment priorities. The project also provides baseline information which the government could use to implement appropriate policy and legislative decisions in order to enhance the e-readiness of SMEs in the ICT sector in Botswana. Finally, the new integrated e-readiness tool that was developed in this project is the first of its kind to bring the different major components of e-readiness (such as enterprise, ICT, human resources, information and external environment readiness) into a single assessment tool with great attention paid to information access. The tool is also modular in design and thus can allow specific e-readiness assessment of individual segments of society to be modelled independently of each other. The tool also enriches the qualitative aspects of e-readiness that are only minimally addressed in a few of the existing macro e-readiness assessment tools. Among the key recommendations from the research is the need for the government of Botswana to promulgate relevant policies and implement pragmatic programmes that would enable SMEs in the ICT sector in the country to use various information technologies in order to gain access to relevant information regarding access to credit, investment opportunities, partnerships, education and training opportunities so that they can effectively participate in both the local and international markets. The policy changes and programmes to be undertaken by the government should be underpinned by an effective legislative and regulatory framework that would enable the small business firms to identify, acquire, process, organise, disseminate and apply information for competitive advantage through the effective deployment and application of ICTs.
- Full Text:
Aspects of business and control considerations in computer network systems
- Authors: Rossouw, Johannes Jacobus
- Date: 2014-07-29
- Subjects: Computer networks , Accounting - Data processing
- Type: Thesis
- Identifier: uj:11934 , http://hdl.handle.net/10210/11660
- Description: M.Com. (Accounting) , Please refer to full text to view abstract
- Full Text:
- Authors: Rossouw, Johannes Jacobus
- Date: 2014-07-29
- Subjects: Computer networks , Accounting - Data processing
- Type: Thesis
- Identifier: uj:11934 , http://hdl.handle.net/10210/11660
- Description: M.Com. (Accounting) , Please refer to full text to view abstract
- Full Text:
Distributed image processing in an intranet environment
- Authors: Van den Berg, Pierre
- Date: 2012-08-28
- Subjects: Image processing , Computer vision , Computer networks , Intranets (Computer networks)
- Type: Thesis
- Identifier: uj:3342 , http://hdl.handle.net/10210/6742
- Description: M.Sc. , Image Processing/Computer Vision and Computer Networks (in particular Intranets) may seem to have very little in common if one only looks at these fields of study superficially. In this dissertation we will look at some fundamentals and characteristics of Image Processing and examine them to see where the problem areas lie, focusing on the problem of computational requirements. We will also examine the fundamental characteristics of Computer Networks and Distributed Processing, looking for areas where we can potentially find a synergy with computational problems inherent in Computer Vision/Image Processing. To accomplish the goals stated above, the dissertation is divided into three parts. The first part examines Computer Vision and Image Processing and is followed by a section examining Distributed Computing models and Computer Networks. The final part is dedicated to suggesting a model to solve the problem of computational load associated with Image Processing. The aim of the model is to take advantage of and use the latent processing power available in an Intranet environment by distributing the processing among the machines on the network. The model is also intended to be flexible and to minimize the network load incurred by distributing the processing. In order to do so, the model is split into units that deliver specialized functionality in order to keep the components small and also to incur the minimum load on a specific machine.
- Full Text:
- Authors: Van den Berg, Pierre
- Date: 2012-08-28
- Subjects: Image processing , Computer vision , Computer networks , Intranets (Computer networks)
- Type: Thesis
- Identifier: uj:3342 , http://hdl.handle.net/10210/6742
- Description: M.Sc. , Image Processing/Computer Vision and Computer Networks (in particular Intranets) may seem to have very little in common if one only looks at these fields of study superficially. In this dissertation we will look at some fundamentals and characteristics of Image Processing and examine them to see where the problem areas lie, focusing on the problem of computational requirements. We will also examine the fundamental characteristics of Computer Networks and Distributed Processing, looking for areas where we can potentially find a synergy with computational problems inherent in Computer Vision/Image Processing. To accomplish the goals stated above, the dissertation is divided into three parts. The first part examines Computer Vision and Image Processing and is followed by a section examining Distributed Computing models and Computer Networks. The final part is dedicated to suggesting a model to solve the problem of computational load associated with Image Processing. The aim of the model is to take advantage of and use the latent processing power available in an Intranet environment by distributing the processing among the machines on the network. The model is also intended to be flexible and to minimize the network load incurred by distributing the processing. In order to do so, the model is split into units that deliver specialized functionality in order to keep the components small and also to incur the minimum load on a specific machine.
- Full Text:
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