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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The use and effectiveness of systems development methodologies in developing electronic learning systems / Jacobus Coenraad van Aswegen

Van Aswegen, Jacobus Coenraad January 2014 (has links)
The main focus of this study is to determine if systems development methodologies are being utilised in the development of electronic learning systems in South Africa and if these methodologies are being applied effectively. Essentially this study can be viewed as exploratory research, utilising a conceptual research model to investigate the relationships between the constructs and measurements. Electronic learning, or e-learning, is being employed to educate millions of learners, students and employees around the world and it is a critical component of modern educational systems. E-learning systems, or learning management systems, as it is known in the field, sit at the heart of these educational systems and are used to systematically deliver on-line content and facilitate the learning experience around that content. There is still much confusion and misconceptions surrounding e-learning and learning management systems abound. This study will try and clarify some of these misconceptions. In e-learning systems, the effective use of information systems is especially relevant as it is used to educate the minds of the future. To ensure that e-learning systems of outstanding quality are being developed, it is therefore crucial that systems development methodologies are being used as they can have a significant impact on the development process. There is a dearth of empirical research available on the use and effectiveness of systems development methodologies in South Africa. This study aims, amongst other things to make a contribution to the availability of empirical results. By empirically evaluating the conceptual research model, utilising a survey as the main research method and statistically analysing the dataset, meaningful results were obtained. This study gave some insights into how learning management system procurement and development is being done in South Africa and revealed that the use of open-source systems currently exceeds the use of proprietary systems. The results of the research showed that systems development methodologies (e.g. Object-Oriented Analysis and Rapid Application Development) are being used effectively in the development of e-learning systems. Strong relationships exist between many of the systems development methodology factors identified (e.g. performance expectancy and the perceived support of the methodology) and the quality and productivity of the development process. This in turn has a strong influence on the impact systems development methodologies have on the quality of learning management systems. / MCom (Computer Science & Information Systems), North-West University, Potchefstroom Campus, 2014
2

The use and effectiveness of systems development methodologies in developing electronic learning systems / Jacobus Coenraad van Aswegen

Van Aswegen, Jacobus Coenraad January 2014 (has links)
The main focus of this study is to determine if systems development methodologies are being utilised in the development of electronic learning systems in South Africa and if these methodologies are being applied effectively. Essentially this study can be viewed as exploratory research, utilising a conceptual research model to investigate the relationships between the constructs and measurements. Electronic learning, or e-learning, is being employed to educate millions of learners, students and employees around the world and it is a critical component of modern educational systems. E-learning systems, or learning management systems, as it is known in the field, sit at the heart of these educational systems and are used to systematically deliver on-line content and facilitate the learning experience around that content. There is still much confusion and misconceptions surrounding e-learning and learning management systems abound. This study will try and clarify some of these misconceptions. In e-learning systems, the effective use of information systems is especially relevant as it is used to educate the minds of the future. To ensure that e-learning systems of outstanding quality are being developed, it is therefore crucial that systems development methodologies are being used as they can have a significant impact on the development process. There is a dearth of empirical research available on the use and effectiveness of systems development methodologies in South Africa. This study aims, amongst other things to make a contribution to the availability of empirical results. By empirically evaluating the conceptual research model, utilising a survey as the main research method and statistically analysing the dataset, meaningful results were obtained. This study gave some insights into how learning management system procurement and development is being done in South Africa and revealed that the use of open-source systems currently exceeds the use of proprietary systems. The results of the research showed that systems development methodologies (e.g. Object-Oriented Analysis and Rapid Application Development) are being used effectively in the development of e-learning systems. Strong relationships exist between many of the systems development methodology factors identified (e.g. performance expectancy and the perceived support of the methodology) and the quality and productivity of the development process. This in turn has a strong influence on the impact systems development methodologies have on the quality of learning management systems. / MCom (Computer Science & Information Systems), North-West University, Potchefstroom Campus, 2014
3

Movement patterns and heart rate recordings of South African Rugby Union referees during actual match–play refereeing / Kraak W.J.

Kraak, Wilbur Julio January 2011 (has links)
Worldwide research regarding the movement patterns, heart rate recordings and work–to–rest ratios of rugby union referees is very limited. It is therefore very important to extend research regarding this topic. The first objective of this dissertation was to determine the frequency, duration and intensity of movement patterns and work–to–rest ratio of different refereeing panels of South African Rugby Union referees during match–refereeing at the National Club Rugby Championship in Stellenbosch during 2007. The second objective was to compare the two halves of the match with regard to the frequency, duration and intensity of the different movement patterns and the work–to–rest ratios of various of SARU referees during match–refereeing at the National Club Rugby Championship in Stellenbosch during 2007. The South African Rugby Union referees were monitored during match–refereeing by means of video and heart rate recordings for a total of 16 matches within a week tournament. The frequency and duration of the different movement patterns during both halves of the matches were analysed using a Dartfish TeamPro analysis software package. Heart rates were recorded during the matches to determine the movement pattern intensities of the referees for the duration of each match using a Suunto Team pack heart rate monitoring system. The work–to–rest ratios were determined by comparing the time (in seconds) spent working (lateral movements and sprinting) to the time spent resting (standing still, walking and jogging). The results revealed a moderate practical significant difference (d=0.51) between the mean frequency of jogging movement patterns for the different refereeing panels. A moderate practical significant difference was also found between the mean duration of jogging (d=0.43) and sprinting (d=0.43) movement patterns of different refereeing panels. The mean intensity of the movement patterns by the different refereeing panels showed large practical significant differences between the anaerobic threshold (d=3.68) and sub–threshold (d=1.36) levels and a moderate practical significant difference for the maximal heart rate zones (d=0.43). Both the provincial and contender panel referees had work–to–rest ratios of 1:4 during match–refereeing. In comparing the two halves of rugby match–refereeing, a large practical significant difference was found between the mean frequency of movement pattern values for standing still (d=2.53), walking (d=2.50), jogging (d=2.42), lateral movements (d=2.86) and sprinting (d=1.31) as well as for mean duration of movement pattern values for standing still (d=2.05), lateral movements (d=0.76) and sprinting (d=0.77). Large practical significant difference were found between the time spent in the maximal threshold (d=2.07), anaerobic threshold (d=0.92) and sub–threshold (d=7.90) heart rate zones measured during the two halves of match–refereeing. Average work–to–rest ratios of 1:3.5 and 1:5 were found for the first and second halves of rugby match–refereeing, respectively. The information gained regarding the activity profile of SARU referees could be used to determine the influence of rugby refereeing experience on the movement patterns and work–to–rest ratio of rugby referees. It can also provide information for constructing specific training programmes and drills in the development of rugby match–required fitness standards for referees. A key component of a rugby union referee’s game is positioning. Being in the right place at the right time is vital. The results of this study suggest that movements associated with positioning ? namely standing still, walking and lateral movements are the major components of the game of referees’ movement during match–refereeing. However, further research is required on this topic of research. / Thesis (M.A. (Sport Science))--North-West University, Potchefstroom Campus, 2012.
4

Movement patterns and heart rate recordings of South African Rugby Union referees during actual match–play refereeing / Kraak W.J.

Kraak, Wilbur Julio January 2011 (has links)
Worldwide research regarding the movement patterns, heart rate recordings and work–to–rest ratios of rugby union referees is very limited. It is therefore very important to extend research regarding this topic. The first objective of this dissertation was to determine the frequency, duration and intensity of movement patterns and work–to–rest ratio of different refereeing panels of South African Rugby Union referees during match–refereeing at the National Club Rugby Championship in Stellenbosch during 2007. The second objective was to compare the two halves of the match with regard to the frequency, duration and intensity of the different movement patterns and the work–to–rest ratios of various of SARU referees during match–refereeing at the National Club Rugby Championship in Stellenbosch during 2007. The South African Rugby Union referees were monitored during match–refereeing by means of video and heart rate recordings for a total of 16 matches within a week tournament. The frequency and duration of the different movement patterns during both halves of the matches were analysed using a Dartfish TeamPro analysis software package. Heart rates were recorded during the matches to determine the movement pattern intensities of the referees for the duration of each match using a Suunto Team pack heart rate monitoring system. The work–to–rest ratios were determined by comparing the time (in seconds) spent working (lateral movements and sprinting) to the time spent resting (standing still, walking and jogging). The results revealed a moderate practical significant difference (d=0.51) between the mean frequency of jogging movement patterns for the different refereeing panels. A moderate practical significant difference was also found between the mean duration of jogging (d=0.43) and sprinting (d=0.43) movement patterns of different refereeing panels. The mean intensity of the movement patterns by the different refereeing panels showed large practical significant differences between the anaerobic threshold (d=3.68) and sub–threshold (d=1.36) levels and a moderate practical significant difference for the maximal heart rate zones (d=0.43). Both the provincial and contender panel referees had work–to–rest ratios of 1:4 during match–refereeing. In comparing the two halves of rugby match–refereeing, a large practical significant difference was found between the mean frequency of movement pattern values for standing still (d=2.53), walking (d=2.50), jogging (d=2.42), lateral movements (d=2.86) and sprinting (d=1.31) as well as for mean duration of movement pattern values for standing still (d=2.05), lateral movements (d=0.76) and sprinting (d=0.77). Large practical significant difference were found between the time spent in the maximal threshold (d=2.07), anaerobic threshold (d=0.92) and sub–threshold (d=7.90) heart rate zones measured during the two halves of match–refereeing. Average work–to–rest ratios of 1:3.5 and 1:5 were found for the first and second halves of rugby match–refereeing, respectively. The information gained regarding the activity profile of SARU referees could be used to determine the influence of rugby refereeing experience on the movement patterns and work–to–rest ratio of rugby referees. It can also provide information for constructing specific training programmes and drills in the development of rugby match–required fitness standards for referees. A key component of a rugby union referee’s game is positioning. Being in the right place at the right time is vital. The results of this study suggest that movements associated with positioning ? namely standing still, walking and lateral movements are the major components of the game of referees’ movement during match–refereeing. However, further research is required on this topic of research. / Thesis (M.A. (Sport Science))--North-West University, Potchefstroom Campus, 2012.
5

A skills and needs analysis among social workers assessing alleged child sexual abuse in the Western Cape

Iffley, Roché Shandré January 2012 (has links)
This study focuses on the skills and needs of forensic social workers, working with alleged child sexual abuse in the Western Cape. Forensic social work is based on specialised knowledge drawn from established principles and their application within proven methodology of training, familiarity with the law, evaluation and objective criteria associated with treatment outcomes. The scope of forensic social work thus includes a specialised skill where human service systems communicate the language in the context of legal systems. This means that the forensic process must withstand critical review and rebuttal from opposing parties in a legal system. It is evident that a forensic social worker needs to have specialised training and specific skills, focusing on forensic investigative interviews, all aspects of child sexual abuse and how the South African justice system operates. Without these skills, the legal process may not be successful and the prevention of child sexual abuse not as successful as it might otherwise be. The general aim of the study was to analyse the skills and needs of social workers assessing allegations of child sexual abuse in order to assist organisations working in the field of forensic social work by improving their support training practices in forensic social work. The researcher used a quantitative descriptive design also known as a survey design. This design usually makes use of a questionnaire as a data collection method and nineteen (19) respondents were selected according to a randomised method of sampling. The findings form part of a list of recommendations to participating welfare organisations. / Thesis (MSc (Physiology))--North-West University, Potchefstroom Campus, 2013.
6

A skills and needs analysis among social workers assessing alleged child sexual abuse in the Western Cape

Iffley, Roché Shandré January 2012 (has links)
This study focuses on the skills and needs of forensic social workers, working with alleged child sexual abuse in the Western Cape. Forensic social work is based on specialised knowledge drawn from established principles and their application within proven methodology of training, familiarity with the law, evaluation and objective criteria associated with treatment outcomes. The scope of forensic social work thus includes a specialised skill where human service systems communicate the language in the context of legal systems. This means that the forensic process must withstand critical review and rebuttal from opposing parties in a legal system. It is evident that a forensic social worker needs to have specialised training and specific skills, focusing on forensic investigative interviews, all aspects of child sexual abuse and how the South African justice system operates. Without these skills, the legal process may not be successful and the prevention of child sexual abuse not as successful as it might otherwise be. The general aim of the study was to analyse the skills and needs of social workers assessing allegations of child sexual abuse in order to assist organisations working in the field of forensic social work by improving their support training practices in forensic social work. The researcher used a quantitative descriptive design also known as a survey design. This design usually makes use of a questionnaire as a data collection method and nineteen (19) respondents were selected according to a randomised method of sampling. The findings form part of a list of recommendations to participating welfare organisations. / Thesis (MSc (Physiology))--North-West University, Potchefstroom Campus, 2013.

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