South African Computer Journal最新文献_第4页

Theorising sociomateriality in online learning: cutting through the complexity 网络学习的社会性理论化:突破复杂性

South African Computer Journal Pub Date : 2022-12-05 DOI: 10.18489/sacj.v34i2.1102

M. Garbutt, C. van den Berg

引用次数: 0

Making research methodologies in theoretical computing explicit 明确理论计算的研究方法

South African Computer Journal Pub Date : 2022-07-22 DOI: 10.18489/sacj.v34i1.881

I. Sanders, Colin Pilkington, L. Pretorius

{"title":"Making research methodologies in theoretical computing explicit","authors":"I. Sanders, Colin Pilkington, L. Pretorius","doi":"10.18489/sacj.v34i1.881","DOIUrl":"https://doi.org/10.18489/sacj.v34i1.881","url":null,"abstract":"All research should be guided by a process that begins with the researcher's philosophical world view and then details why the research has value, how the research was done, and why the particular approach was used. In addition, this process should be made known to the research community. In this paper we argue that theoretical or applied computing research does not normally conform to this common approach of being explicit about the research approach used but that it should do so. We adopt a pragmatic world view and use an argumentation method within a philosophical analysis design to support our position. We then adopt an accepted conceptual model of research methodology structure and use two examples to show that it can be applied across the field of computing. In addition, we propose a set of questions that could guide researchers in assessing the validity of their research. The model and the questions can be introduced to postgraduate students and developing researchers to assist them in planning and reporting their research. In addition to the practical contribution made by the model and questions, this paper adds to the debate about the place of research methodologies in Computer science research.","PeriodicalId":55859,"journal":{"name":"South African Computer Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43832562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Secondary school teachers’ perceptions of BYOD among learners within the classroom 中学教师对课堂内学生BYOD的看法

South African Computer Journal Pub Date : 2022-07-22 DOI: 10.18489/sacj.v34i1.952

T. Mawere, Caleeb Manjeese, Joel Chigada

{"title":"Secondary school teachers’ perceptions of BYOD among learners within the classroom","authors":"T. Mawere, Caleeb Manjeese, Joel Chigada","doi":"10.18489/sacj.v34i1.952","DOIUrl":"https://doi.org/10.18489/sacj.v34i1.952","url":null,"abstract":"The use of personally owned devices among learners has remained a contentious issue in schools across the globe. While several studies have been devoted to explaining the importance of such initiatives, the debate has continued to rage on, with most school authorities imposing a blanket ban on the use of these devices within their premises. In this study, we seek to contribute by examining in-service teachers’ perceptions of the use of personally owned devices in schools within the global south context. The qualitative study explores teachers’ understanding of the usefulness of technology and associated devices such as smartphones in the classroom. The Unified Theory of Use and Acceptance of Technology (UTUAT) was used to draw up a conceptual framework. Purposive sampling was employed to select in-service secondary school teachers who had at some time previously enrolled in an introduction to information technology course at a tertiary institution. Constant comparison analysis and thematic analysis were used to analyse the data from the focus groups. Thirteen thematic areas were drawn from the study and these were framed to support the conceptual framework.","PeriodicalId":55859,"journal":{"name":"South African Computer Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43288858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The state of systems development methodologies use within the systems development organisations in South Africa 南非系统开发组织中使用的系统开发方法的状态

South African Computer Journal Pub Date : 2022-07-22 DOI: 10.18489/sacj.v34i1.926

B. Moyo, Magda Huisman, L. Drevin

{"title":"The state of systems development methodologies use within the systems development organisations in South Africa","authors":"B. Moyo, Magda Huisman, L. Drevin","doi":"10.18489/sacj.v34i1.926","DOIUrl":"https://doi.org/10.18489/sacj.v34i1.926","url":null,"abstract":"The adoption of the most appropriate systems development methodology (SDM) for a systems developmentproject is one of the most critical decisions in systems development practice. An appropriate SDM for a sys-tems development project is adopted to avoid a misfit of a systems development methodology to the systemsdevelopment project contextual settings. An SDM misfit is caused by an SDM whose basic assumptions havebeen violated by the targeted systems development project contextual settings. A misfit may increase theeffort required for an SDM in use to fit the systems development project contextual settings. The study aimsto investigate the contingent use of SDMs as an approach to minimise SDM misfit in a systems developmentproject. The purpose of the article is to present insights on the contingent use of SDMs derived from a surveyof 155 organisations involved in systems development. The results show that both plan-driven and agile SDMclass instances are in use and that hybrid SDMs characterise most SDM implementations. The findings haveimplications for both research and practice as they unify the use of the two SDM classes under the contingentuse of SDMs approach.","PeriodicalId":55859,"journal":{"name":"South African Computer Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42165791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating the optimization of limited government resources in low-income countries using a sharing economy platform 利用共享经济平台评估低收入国家有限政府资源的优化

South African Computer Journal Pub Date : 2022-07-22 DOI: 10.18489/sacj.v34i1.972

Seffi Gebeyehu, H. Twinomurinzi

{"title":"Evaluating the optimization of limited government resources in low-income countries using a sharing economy platform","authors":"Seffi Gebeyehu, H. Twinomurinzi","doi":"10.18489/sacj.v34i1.972","DOIUrl":"https://doi.org/10.18489/sacj.v34i1.972","url":null,"abstract":"This paper reports on the design and usefulness of a digital government innovation to share limited government resources in low-income countries (LICs) based on the sharing economy paradigm, collaborative consumption (CC). The innovation was developed using design science research and the usefulness was evaluated using the Unified Theory of Acceptance and Use of Technology (UTAUT) model (n=321) with Structural Equation Modeling (SEM). The key findings reveal that performance expectancy, effort expectancy, and facilitating conditions are significant factors of the behavioral intention to adopt the CC platform. Social influence was however not a significant factor. These key findings suggest the practical usefulness of the CC platform in motivating the sharing of limited government resources and overcoming traditional government bureaucracy. The study contributes to information systems theory in advocating for the adoption of a sharing economy ethos as a means to maximizing limited government resources in LICs, and in creating digital artifacts using design science research methods. The study recommends for LIC governments to further extend the resource sharing capability to include non-government organisations and citizens.","PeriodicalId":55859,"journal":{"name":"South African Computer Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49480425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An adaptive, probabilistic, cognitive agent architecture for modelling sugarcane growers’ operational decision-making 一种用于甘蔗种植者操作决策建模的自适应、概率、认知代理体系结构

South African Computer Journal Pub Date : 2022-07-22 DOI: 10.18489/sacj.v34i1.857

C. S. Price, Deshendran Moodley, A. Pillay, Gavin Rens

{"title":"An adaptive, probabilistic, cognitive agent architecture for modelling sugarcane growers’ operational decision-making","authors":"C. S. Price, Deshendran Moodley, A. Pillay, Gavin Rens","doi":"10.18489/sacj.v34i1.857","DOIUrl":"https://doi.org/10.18489/sacj.v34i1.857","url":null,"abstract":"Building computational models of agents in dynamic, partially observable and stochastic environments is challenging. We propose a cognitive computational model of sugarcane growers’ daily decision-making to examine sugarcane supply chain complexities. Growers make decisions based on uncertain weather forecasts; cane dryness; unforeseen emergencies; and the mill’s unexpected call for delivery of a different amount of cane. The Belief-Desire-Intention (BDI) architecture has been used to model cognitive agents in many domains, including agriculture. However, typical implementations of this architecture have represented beliefs symbolically, so uncertain beliefs are usually not catered for. Here we show that a BDI architecture, enhanced with a dynamic decision network (DDN), suitably models sugarcane grower agents’ repeated daily decisions. Using two complex scenarios, we demonstrate that the agent selects the appropriate intention, and suggests how the grower should act adaptively and proactively to achieve his goals. In addition, we provide a mapping for using a DDN in a BDI architecture. This architecture can be used for modelling sugarcane grower agents in an agent-based simulation. The mapping of the DDN’s use in the BDI architecture enables this work to be applied to other domains for modelling agents’ repeated decisions in partially observable, stochastic and dynamic environments","PeriodicalId":55859,"journal":{"name":"South African Computer Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46532746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Critical success factors in Software Development Projects 软件开发项目中的关键成功因素

South African Computer Journal Pub Date : 2022-07-22 DOI: 10.18489/sacj.v34i1.820

M. Bogopa, C. Marnewick

{"title":"Critical success factors in Software Development Projects","authors":"M. Bogopa, C. Marnewick","doi":"10.18489/sacj.v34i1.820","DOIUrl":"https://doi.org/10.18489/sacj.v34i1.820","url":null,"abstract":"Irrespective of the software development methodology, projects still fail at any development stage. Some of the factors that may affect project success or failure include process-related factors, such as an unrealistic budget and schedule, or technical-related factors like the methodology. The study aims to determine the influence of the most critical success factors of each category (people, process, and technical) on the overall outcome of software projects in the South African context. This study surveyed members of software development teams from across South African organisations and gathered information about software development project success and factors that contribute to project outcomes. A structured questionnaire was used to collect the study data. According to the results, software development projects need: (1) a committed and motivated team; (2) the client must be involved all the time; (3) specifications/requirements must be clear; (4) leadership must be good; (5) the project’s goals and objectives must be well-defined. The critical success factors are ranked by their strength in relation to success criteria. The study further found that most of the perceived factors are related to non-technical factors. This research contributes to the current software industry debate about critical success factors categories in the South African context.","PeriodicalId":55859,"journal":{"name":"South African Computer Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47040520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Ensuring quality PhDs in computing 确保高质量的计算机博士学位

South African Computer Journal Pub Date : 2022-07-22 DOI: 10.18489/sacj.v34i1.1115

I. Sanders

引用次数: 0

An IT strategic decision-making framework in the midst of disruptive technologies 颠覆性技术中的IT战略决策框架

South African Computer Journal Pub Date : 2022-07-22 DOI: 10.18489/sacj.v34i1.1072

Rajan Padayachee, A. van der Merwe, M. Matthee

{"title":"An IT strategic decision-making framework in the midst of disruptive technologies","authors":"Rajan Padayachee, A. van der Merwe, M. Matthee","doi":"10.18489/sacj.v34i1.1072","DOIUrl":"https://doi.org/10.18489/sacj.v34i1.1072","url":null,"abstract":"Technological disruption enabled by the internet revolution has resulted in an exponential increase in the growth of new technologies and the resultant technology disruptions in the workplace. Disruptive technologies are changing the rules of competition in organisations. Most chief information officers agree that there could be significant value in utilising new technology to create a competitive advantage in an agile world; however, in practice, the adoption and implementation of newer technology occur relatively slowly. There is very little research on factors influencing strategic IT decisions from a perspective of disruptive technologies. The objective of this study was to investigate critical factors that guide strategic IT decision-making in an agile business context. Using a literature review, various factors that had an influence on strategic IT decision-making in organisations were identified. The factors were extended and confirmed with data from semi-structured interviews resulting in the Framework for IT decision-making and a model for the classification of IT systems, which provide CIOs with comprehensive guidelines to make strategic IT decisions in the midst of disruptive technologies.","PeriodicalId":55859,"journal":{"name":"South African Computer Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45109871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding Age Differences in Technophobia: A South African Case Study 了解技术恐惧症的年龄差异:一个南非的案例研究

South African Computer Journal Pub Date : 2022-07-22 DOI: 10.18489/sacj.v34i1.1039

Samuel T. Faloye, Sanjay Ranjeeth, S. Ako-Nai

{"title":"Understanding Age Differences in Technophobia: A South African Case Study","authors":"Samuel T. Faloye, Sanjay Ranjeeth, S. Ako-Nai","doi":"10.18489/sacj.v34i1.1039","DOIUrl":"https://doi.org/10.18489/sacj.v34i1.1039","url":null,"abstract":"Over the years, technology has become an essential part of our lives, with technological advancement presenting on-going opportunities. However, technology creates negative emotions, anxiety and fear among some people due to an established set of norms and individual behaviour patterns. Such fear, anxiety and apprehension has been described as technophobia, which constrains individuals’ ability to use technology and thus puts them at a disadvantage. The continuous emergence of new technologies has given rise to increased technophobia, which is now believed to affect a third of every population. This article examines age differences in the level of technophobia as well as the personal characteristics that positively influence it. A quantitative methodology was employed, and 384 questionnaires were distributed to participants in Pietermaritzburg, KwaZulu-Natal, South Africa. The findings show that technophobia occurs within all age groups (the young, middle-aged and older). However, young adults with no formal education and employment demonstrated lower levels of technophobia than other age groups. The results also demonstrate a significant relationship between levels of technophobia and the demographic profile of respondents. The article concludes with a discussion on strategies to manage technophobia.","PeriodicalId":55859,"journal":{"name":"South African Computer Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47486418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2