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A model for inebriation recognition in humans using computer vision

Co-designing digital information-seeking activities with and for the small-scale farmers of the Siyakhana Initiative

  • Authors: Donaldson, Tasmin Jade
  • Date: 2019
  • Subjects: Human-computer interaction , Design - Data processing , Information technology , Farmers
  • Language: English
  • Type: Masters (Thesis)
  • Identifier: http://hdl.handle.net/10210/411600 , uj:34596
  • Description: Abstract: Information is paramount to empowering people and communities, laying the foundations for “equality, sustainability and prosperity” as a critical driver of progress (Garrido & Wyber 2017:7). While only half of the world’s population has access to devices, let alone online services, the need to foster the growth of an information-empowered society is more significant than it has ever been (Garrido & Wyber 2017:7). Information Communication Technology (ICT) provides this mechanism, with mobile technologies playing a significant role; however, having access to information and having the ability to connect is meaningless if people cannot apply information to ‘real-world problems’ (Garrido & Wyber 2017:7,46). The following dissertation describes an interaction design (IxD) project that follows a Research Through Design (RTD) methodology. The study aimed to improve information-seeking activities with and for small-scale farmers, namely the farmers of the Siyakhana Initiative, using an experience-centred approach. The research leveraged a unique combination of activity-based models providing the theoretical underpinning of the study. The co-design process used a novel integration of contextmapping and IxD to identify small-scale farmer’s motivations and aspirations related to their information needs and information-seeking behaviours. The outcome of the study was the co-design of a prototyped concept using the affordances offered by digital technology to improve the way that small- scale farmers find, use and share information. , M.A. (Design)
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Computer ergonomics: experiences of the grade one learners in Gauetng online computer laboratory

  • Authors: Ngcapu, Sibongile Ruth
  • Date: 2008-07-07T09:33:49Z
  • Subjects: Human engineering , Human-computer interaction , Information storage and retrieval systems
  • Type: Mini-Dissertation
  • Identifier: uj:10270 , http://hdl.handle.net/10210/763
  • Description: The study aims at determining how the aspects of the computer hardware and the furniture affect the experiences of the Grade one learners in the computer laboratory in a Gauteng school. Qualitative data has been used, that is, data was collected through interviews, observation, measurements and literature review. The findings indicate that the learners’ health is at risk as the computer workstations in the computer laboratory in a Gauteng school are not ergonomically designed to suit these learners, and the workstations too large. For learners not to be exposed to Musculo Skeletal Disorders (MSD), wrist pains, and vision problems, that may accumulate as a result of the strain they are subjected to when using a workstation not designed for their physique, the workstation in a Gauteng school will have to be adjusted accordingly. However, adjusting the hardware and furniture without the knowledge of using them safely is detrimental to their health. Learners and educators have to be taught ergonomics. Incorporating ergonomics as a theme in the curriculum would be the best option. A casual reminder by educators to the learners to enforce practicing ergonomics when working on the computers would gradually develop safe working practices and save the learner from upper limbs injuries , Prof. D. Van der Westhuizen
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Requirements elicitation techniques for overcoming a lack of domain knowledge

  • Authors: Kawayongo, Jojo Mbumba
  • Date: 2016
  • Subjects: Interactive computer systems , Human-computer interaction , System design , Computer software - Development
  • Language: English
  • Type: Masters (Thesis)
  • Identifier: http://ujcontent.uj.ac.za8080/10210/366326 , http://hdl.handle.net/10210/213034 , uj:21069
  • Description: Abstract: Evidence suggests that requirements elicitation has been one of the fundamental activities in the development of software systems. Requirements elicitation entails systems analysts to interact effectively with users in order to gain knowledge of the proposed system. To ensure the quality of requirements elicitation, systems analysts might require domain knowledge of the proposed system. However, systems analysts might also be assigned to elicit requirements of a software system for which they lack domain knowledge. Thus, this research study presented a systematic literature review to identify all articles that discussed the techniques that can assist systems analysts obtain domain knowledge. This was achieved by following a systematic review protocol from which the researcher found 53 related articles. These articles were reviewed to identify which techniques might be used to obtain a specific type of domain knowledge such as behaviour, data, and process of the proposed system. The most interesting findings about this systematic review were that: - Most techniques were effective for obtaining domain knowledge of process. - A great number of techniques might be used for obtaining domain knowledge of behaviour. However, scenarios seemed to be the most effective. - Structure interview, card sorting, repertory grid, and prototyping were relatively a good fit for obtaining domain knowledge of data. Despite a great number of findings, this systematic review was also exposed to some validity threats. These threats were drastically reduced by following a well-defined systematic review protocol. However, not all of these threats were minimized completely and thus might need to be further investigated in future studies. In summary, this systematic review might be used as a guideline for helping both systems analysts who lack domain knowledge and practitioners in requirements elicitation. This systematic review also contributed to the body of literature in requirements elicitation techniques. , M.Ing.
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The interface between technology and service operations : a business process re-engineering model for variables that have impact on the adoption of electronic customer relationship management (ECRM) systems used in the medical device industry

  • Authors: Seema, Khotso Emmanuel
  • Date: 2021
  • Subjects: Human-computer interaction , Customer relations - Management , Electronic commerce , Medical instruments and apparatus - Design and construction
  • Language: English
  • Type: Masters (Thesis)
  • Identifier: http://hdl.handle.net/10210/481940 , uj:43685
  • Description: Abstract: The advent of digital revolution has changed the traditional way of manging businesses with a focus on better customer relationship management using sophisticated management software. From customer loyalty to demanding customers, companies and organisations have upgraded their standard business processes through transformation and re-engineering for productivity improvement. This study examines the interface between technology and service operations with an emphasis on business process re-engineering model for variables that have impact on the adoption of electronic Customer Relationship Management (eCRM) systems used in the medical device industry in South Africa. This research uses the qualitative method for technology acceptance model, McKensey, SWOT and PESTEL analysis as well as the quantitative research method to statistically measure data collected from the interviews and questionnaires. Descriptive statistics, correlation and regression analysis were used to assess the relationship and the degree of significance between research variables that were tested reliable and valid. Results showed that critical success factors that enable successful eCRM implementation involve management and employee commitment, IT infrastructure, User acceptance, business process redesign, project champion, change management and training. Research findings showed that 78.80% of the business performance behaviour is explained by all research variables namely the human factor 1, human factor 2, user-interface and usability, standard operating procedure and the training variables. Furthermore, only the human factor 2 and the standard operations procedure variables have a positive and significant relationship with the organisational performance. However, the ANOVA statistics showed that the contribution of all these variables at once remains significant for a successful implementation of the eCRM application system in the medical device industry. Although, it is an obligation for businesses to become fully digitalised to deliver quality and on-time services, observations showed that 65% of such project implementation fails because of no commitment from the top management, no employee or end-user’s contribution on the decisionmaking process, lack of team collaboration, no “As-Is” business procedures, constant training requirements, continuous system updates as well as the eCRM system limitations. However, the use of smart technologies is currently a “must” that companies have to adopt since customer experience is growing at a high speed. Based on the above-mentioned results, this study has built up a business process re-engineering model that will guide organisations in coping with the difficult process of new management software implementation while decreasing cost implications and thus ensure customer satisfaction as well as business efficiency. , M.Tech. (Operations Management)
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