Text data analysis for a smart city project in a developing nation
- Authors: Currin, Aubrey Jason
- Date: 2015
- Subjects: Natural language processing (Computer science) Human computation Human-computer interaction
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/2227 , vital:27709
- Description: Increased urbanisation against the backdrop of limited resources is complicating city planning and management of functions including public safety. The smart city concept can help, but most previous smart city systems have focused on utilising automated sensors and analysing quantitative data. In developing nations, using the ubiquitous mobile phone as an enabler for crowdsourcing of qualitative public safety reports, from the public, is a more viable option due to limited resources and infrastructure limitations. However, there is no specific best method for the analysis of qualitative text reports for a smart city in a developing nation. The aim of this study, therefore, is the development of a model for enabling the analysis of unstructured natural language text for use in a public safety smart city project. Following the guidelines of the design science paradigm, the resulting model was developed through the inductive review of related literature, assessed and refined by observations of a crowdsourcing prototype and conversational analysis with industry experts and academics. The content analysis technique was applied to the public safety reports obtained from the prototype via computer assisted qualitative data analysis software. This has resulted in the development of a hierarchical ontology which forms an additional output of this research project. Thus, this study has shown how municipalities or local government can use CAQDAS and content analysis techniques to prepare large quantities of text data for use in a smart city.
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Ensuring high quality public safety data in participatory crowdsourcing used as a smart city initiative
- Authors: Bhana, Bhaveer
- Date: 2013
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11141 , http://hdl.handle.net/10353/d1014673
- Description: The increase in urbanisation is making the management of city resources a difficult task. Data collected through observations of the city surroundings can be used to improve decision-making in terms of manage city resources. However, the data collected must be of quality in order to ensure that effective and efficient decisions are made. This study is focused on improving emergency and non-emergency services (city resources) by using Participatory Crowdsourcing as a data collection method (collect public safety data) utilising voice technology in the form of an advanced IVR system known as the Spoken Web. The study illustrates how Participatory Crowdsourcing can be used as a Smart City initiative by illustrating what is required to contribute to the Smart City, and developing a roadmap in the form of a model to assist decision-making when selecting the optimal Crowdsourcing initiative. A Public Safety Data Quality criteria was also developed to assess and identify the problems affecting Data Quality. This study is guided by the Design Science methodology and utilises two driving theories: the characteristics of a Smart City, and Wang and Strong’s (1996) Data Quality Framework. Five Critical Success Factors were developed to ensure high quality public safety data is collected through Participatory Crowdsourcing utilising voice technologies. These Critical Success Factors include: Relevant Public Safety Data, Public Safety Reporting Instructions, Public Safety Data Interpretation and Presentation Format, Public Safety Data Integrity and Security, and Simple Participatory Crowdsourcing System Setup.
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Impact of information and communication technology (ICT) on trust and information sharing in South African automotive supply chains
- Authors: Goche, Chiedza
- Date: 2012
- Subjects: Business logistics -- South Africa , Automobile industry and trade -- South Africa , Interorganizational relations -- South Africa , Trust -- South Africa , Information technology -- South Africa , Prisoner's dilemma game
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: http://hdl.handle.net/10353/668 , vital:26486 , Business logistics -- South Africa , Automobile industry and trade -- South Africa , Interorganizational relations -- South Africa , Trust -- South Africa , Information technology -- South Africa , Prisoner's dilemma game
- Description: The Internet has made a considerable impact on how business is conducted. Empowered by technology consumers are using the Internet as a tool to communicate and transact online. E-commerce (electronic commerce) presents opportunities for business to gain a competitive advantage, however it also posses certain challenges. Small and Medium Hospitality Enterprises (SMHEs) sector within the tourism industry, is one of the sectors which stands to benefit from using the Internet for business. Researchers agree that the contribution made by the tourism sector in developing economies is substantial. However, SMHEs are noted for their failure to derive optimal benefits from using the Internet for business to improve their competitiveness. This study which seeks to develop a model for use by SMHEs as a guide when making the decision to adopt technology was necessitated by the importance of SMHE’s contribution in the economy of developing countries. This model is based on the examination of existing theories and models such as; the Delone and McLean IS success model (2004), and the ITGI’s (2007) IT governance focus areas model. To elicit the desired outcomes, additional data was collected using questionnaires, interviews, and observations. The collected data was analysed and resulted in the development of a model that can be used by SMHEs in order to derive value from IT and to gain a competitive advantage.
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Adoption and sustained use of M-Commerce to improve efficacy of construction SMMEs
- Authors: Williams, Zenande
- Date: 2011
- Subjects: Construction industry , Mobile commerce , Small business , Computer-assisted instruction , Interactive videos
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11125 , http://hdl.handle.net/10353/528 , Construction industry , Mobile commerce , Small business , Computer-assisted instruction , Interactive videos
- Description: E-commerce has been said to bring value to businesses by improving business efficiency and effectiveness and thus providing business with a competitive advantage through the potential benefits that it offers (Cloete, Courtney & Fintz, 2002). However, despite the potential benefits that e-commerce can offer, the adoption of B2C e-commerce in South African construction SMMEs is low and this is due to the challenges associated with e-commerce (Vaithanathan, 2010; Uzoka, Shemi & Seleka, 2007; Love & Irani, 2004; Anumba & Ruikar, 2002). These e-commerce challenges include: high implementation costs, lack or poor infrastructure, inadequate resources, low use of e-commerce by suppliers and consumers, lack of access to e-commerce, computer illiteracy, deficiency in understanding the potential benefits of e-commerce and security concerns (Vaithanathan, 2010; Uzoka, Shemi, & Seleka, 2007; Mensah, Bahta, & Mhlanga, 2005; Cloete, Courtney, & Fintz, 2002). Therefore, due to these e-commerce challenges, construction SMMEs do not exploit the business advantages that e-commerce offers. In order to assist South African construction SMMEs in their efforts to improve their business effectiveness and efficiency through commercial technologies.
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Critical success factors for user acceptance of telemedicine in South Africa
- Authors: Cilliers, Liezel
- Date: 2010
- Subjects: Telecommunication in medicine , Medical telematics
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11126 , http://hdl.handle.net/10353/384 , Telecommunication in medicine , Medical telematics
- Description: The World Health Organization has recommended Telemedicine to improve health care in developing countries. The objective of this study was to produce Critical Success Factors that will investigate and identify factors that influence the acceptance and continued use of Telemedicine in the Eastern Cape Department of Health, and to suggest ways to sustain this technology from initial adoption (the pilot programme) to full adoption. Sub questions investigated which other facilitating factors, such as management support or previous Information Technology exposure must be present in order for the technology to be adopted successfully. The study made use of a questionnaire to investigate the user acceptance and behaviour of health care workers. A return rate of 76% was achieved. The data was analysed making use of Statistical Package for the Social Sciences (SPSS), specifically the Chi Square test. From these results Critical Success Factors where then formulated to address the problems identified. The Critical Success Factors that were identified include: Implement and disseminate best practice within a legislative framework; Find a champion; Change management strategies; Training; Sustainable finance; Technical issues and Project management principles If these CSFs are addressed before and during the implementation of Telemedicine it will increase the acceptance and use of the technology among health care workers. Critical Success Factors for User Acceptance of Telemedicine in South Africa.
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E-mail forensic authorship attribution
- Authors: Lalla, Himal
- Date: 2010
- Subjects: Electronic evidence , Electronic mail systems , Authorship , Electronic mail messages , Signatures (Writing) , Writing -- Identification , Forensic accounting
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11128 , http://hdl.handle.net/10353/360 , Electronic evidence , Electronic mail systems , Authorship , Electronic mail messages , Signatures (Writing) , Writing -- Identification , Forensic accounting
- Description: E-mails have become the standard for business as well as personal communication. The inherent security risks within e-mail communication present the problem of anonymity. If an author of an e-mail is not known, the digital forensic investigator needs to determine the authorship of the e-mail using a process that has not been standardised in the e-mail forensic field. This research project examines many problems associated with e-mail communication and the digital forensic domain; more specifically e-mail forensic investigations, and the recovery of legally admissible evidence to be presented in a court of law. The Research Methodology utilised a comprehensive literature review in combination with Design Science which results in the development of an artifact through intensive research. The Proposed E-Mail Forensic Methodology is based on the most current digital forensic investigation process and further validation of the process was established via expert reviews. The opinions of the digital forensic experts were an integral portion of the validation process which adds to the credibility of the study. This was performed through the aid of the Delphi technique. This Proposed E-Mail Forensic Methodology adopts a standardised investigation process applied to an e-mail investigation and takes into account the South African perspective by incorporating various checks with the laws and legislation. By following the Proposed E-mail Forensic Methodology, e-mail forensic investigators can produce evidence that is legally admissible in a court of law.
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Phishing within e-commerce: reducing the risk, increasing the trust
- Authors: Megaw, Gregory M
- Date: 2010
- Subjects: Phishing , Identity theft -- Prevention , Electronic commerce , Computer security , Internet -- Safety measures
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11131 , http://hdl.handle.net/10353/376 , Phishing , Identity theft -- Prevention , Electronic commerce , Computer security , Internet -- Safety measures
- Description: E-Commerce has been plagued with problems since its inception and this study examines one of these problems: The lack of user trust in E-Commerce created by the risk of phishing. Phishing has grown exponentially together with the expansion of the Internet. This growth and the advancement of technology has not only benefited honest Internet users, but has enabled criminals to increase their effectiveness which has caused considerable damage to this budding area of commerce. Moreover, it has negatively impacted both the user and online business in breaking down the trust relationship between them. In an attempt to explore this problem, the following was considered: First, E-Commerce’s vulnerability to phishing attacks. By referring to the Common Criteria Security Model, various critical security areas within E-Commerce are identified, as well as the areas of vulnerability and weakness. Second, the methods and techniques used in phishing, such as phishing e-mails, websites and addresses, distributed attacks and redirected attacks, as well as the data that phishers seek to obtain, are examined. Furthermore, the way to reduce the risk of phishing and in turn increase the trust between users and websites is identified. Here the importance of Trust and the Uncertainty Reduction Theory plus the fine balance between trust and control is explored. Finally, the study presents Critical Success Factors that aid in phishing prevention and control, these being: User Authentication, Website Authentication, E-mail Authentication, Data Cryptography, Communication, and Active Risk Mitigation.
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Quality assessment of information systems in SMEs: a study of Eldoret Town in Kenya
- Authors: Ndiege, Joshua Rumo Arongo
- Date: 2010
- Subjects: Small business -- Kenya , Financial institutions -- Kenya , Small business -- Kenya -- Data processing , Information technology -- Kenya -- Evaluation
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11132 , http://hdl.handle.net/10353/d1000973 , Small business -- Kenya , Financial institutions -- Kenya , Small business -- Kenya -- Data processing , Information technology -- Kenya -- Evaluation
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Small hospitality enterprises and the internet: an IT governance model for conducting business online
- Authors: Ngoqo, Bukelwa
- Date: 2010
- Subjects: Hospitality industry -- South Africa , Tourism -- South Africa , Organizational effectiveness -- South Africa , Electronic commerce , Internet , Risk management , Electronic data processing
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11133 , http://hdl.handle.net/10353/382 , Hospitality industry -- South Africa , Tourism -- South Africa , Organizational effectiveness -- South Africa , Electronic commerce , Internet , Risk management , Electronic data processing
- Description: The Internet has made a considerable impact on how business is conducted. Empowered by technology consumers are using the Internet as a tool to communicate and transact online. E-commerce (electronic commerce) presents opportunities for business to gain a competitive advantage, however it also posses certain challenges. Small and Medium Hospitality Enterprises (SMHEs) sector within the tourism industry, is one of the sectors which stands to benefit from using the Internet for business. Researchers agree that the contribution made by the tourism sector in developing economies is substantial. However, SMHEs are noted for their failure to derive optimal benefits from using the Internet for business to improve their competitiveness. This study which seeks to develop a model for use by SMHEs as a guide when making the decision to adopt technology was necessitated by the importance of SMHE’s contribution in the economy of developing countries. This model is based on the examination of existing theories and models such as; the Delone and McLean IS success model (2004), and the ITGI’s (2007) IT governance focus areas model. To elicit the desired outcomes, additional data was collected using questionnaires, interviews, and observations. The collected data was analysed and resulted in the development of a model that can be used by SMHEs in order to derive value from IT and to gain a competitive advantage.
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A model for user requirements elicitation specific to users in rural areas
- Authors: Isabirye, Naomi
- Date: 2009
- Subjects: Internet marketing , Electronic commerce , Land reform -- South Africa -- Eastern Cape , Sustainable development -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Information resources management
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11130 , http://hdl.handle.net/10353/145 , Internet marketing , Electronic commerce , Land reform -- South Africa -- Eastern Cape , Sustainable development -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Information resources management
- Description: Dwesa is a rural town situated in South Africa's Eastern Cape Province that has been selected as a testing site for an e-commerce project to address some of the challenges faced by the community. These challenges include difficulties stemming from poverty, poor access to public services, unemployment and low levels of literacy. The Siyakhula Living Lab project’s aim is to develop an e-commerce platform that will 'connect' the residents with the necessary access to services and markets by providing them with the necessary tools that can help in alleviating some of their challenges. In order for the project to achieve its objectives, a deeper understanding into the needs of the prospective users is required. User requirements elicitation deals with the process of interacting with the prospective users to understand and document their needs. This research aims at evaluating existing requirements elicitation techniques and methodologies in the context of rural information technology implementations. The primary objective is to develop a model for user requirements elicitation in Dwesa. Many requirements elicitation techniques and frameworks exist, but few have been evaluated in the context of rural software implementations. Requirements elicitation techniques should not be applied simply as steps to gather information. Instead this research project proposes a model that can be applied to assimilate the contribution of knowledge regarding the stakeholders, problem and solution characteristics, and other characteristics into the software development process for the effective elicitation of requirements.
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A model to measure the maturuty of smartphone security at software consultancies
- Authors: Allam, Sean
- Date: 2009
- Subjects: Computer networks -- Security measures , Capability maturity model (Computer software) , Smartphones , Wireless Internet , Mobile communication systems , Mobile computing
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11135 , http://hdl.handle.net/10353/281 , Computer networks -- Security measures , Capability maturity model (Computer software) , Smartphones , Wireless Internet , Mobile communication systems , Mobile computing
- Description: Smartphones are proliferating into the workplace at an ever-increasing rate, similarly the threats that they pose is increasing. In an era of constant connectivity and availability, information is freed up of constraints of time and place. This research project delves into the risks introduced by smartphones, and through multiple cases studies, a maturity measurement model is formulated. The model is based on recommendations from two leading information security frameworks, the COBIT 4.1 framework and ISO27002 code of practice. Ultimately, a combination of smartphone specific risks are integrated with key control recommendations, in providing a set of key measurable security maturity components. The subjective opinions of case study respondents are considered a key component in achieving a solution. The solution addresses the concerns of not only policy makers, but also the employees subjected to the security policies. Nurturing security awareness into organisational culture through reinforcement and employee acceptance is highlighted in this research project. Software consultancies can use this model to mitigate risks, while harnessing the potential strategic advantages of mobile computing through smartphone devices. In addition, this research project identifies the critical components of a smartphone security solution. As a result, a model is provided for software consultancies due to the intense reliance on information within these types of organisations. The model can be effectively applied to any information intensive organisation.
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Deriving value from IT investments within botique hotels: a Buffalo City case study
- Authors: Mathe, Thabelang
- Date: 2009
- Subjects: Information technology , Hotels -- Finance , Boardinghouses -- Finance , Small business -- South Africa -- Eastern Cape , Small business -- Finance
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11134 , http://hdl.handle.net/10353/d1000975 , Information technology , Hotels -- Finance , Boardinghouses -- Finance , Small business -- South Africa -- Eastern Cape , Small business -- Finance
- Description: Even though many organizations invest in IT, the value that IT is expected to contribute is still not clearly understood. Researchers agree that IT has become a crucial element to business operations and business existence. However, while there is continued investment in new information technologies and systems, organizations are not certain whether significant value is derived from IT investments. The failure to realize good return on IT investments is ascribed to a lack of understanding of IT by organizations and also the failure by organizations to align IT strategies with business strategies. The lack of alignment leads to the failure to match the right IT to the correct task, which leads to the poor application of systems and poor allocation of human resources to tasks. Therefore, organizations such as Small and Medium Enterprises (SMEs) in particular Boutique Hotels, are noted for their failure to derive better IT value. Their unique characteristics are understood to be influential in the way IT is used and managed by affecting the delivery of value from technology. In order to enable Boutique Hotels to derive more value from IT, the IT governance frameworks, Val IT and CobiT (ITGI, 2007), were examined as these integrate good practices to ensure that an organization‘s IT supports the business objectives. In addition, the Task Technology Fit (TTF) (Goodhue and Thompson, 1995) and Gap Analysis (Heeks, 2001) theories were highlighted as these prescribe the platform ideal for more value to be derived from IT. The current status of Boutique Hotels in Buffalo City was assessed through the use of questionnaires and interviews. The collected data was analyzed and resulted in the development of a model that can be used by Boutique Hotels in order to derive more value from IT and to maximize the use of IT.
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