Strategies for value-creation in a post-merged organisation
- Authors: Roodt, Kendra-Lynn
- Date: 2011
- Subjects: Consolidation and merger of corporation
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8650 , vital:26417
- Description: A merger occurs when two or more organisations integrate for a specific reason and become one entity in order to ensure success. Careful consideration and thorough planning must be done and several steps need to be followed to avoid a merger being unsuccessful. Good leadership and communication strategies are the key to a successful merger. This study deals with the strategies for value-creation in a post-merged organisation and the main problem that this research study addressed was: What strategies could an organisation use to ensure that desired values are created in a post-merged organisation? To answer the above question it was necessary to address the preferred organisational values and outcomes of a successful merger and leadership strategies that organisations can utilise to ensure that the preferred values and outcomes of a merger are achieved. Thereafter, various models were outlined and evaluated and a proposed integrated model for the implementation of desired values in a merged institution element was developed to ensure that the members of the organisation internalise the desired values and that these values are reflected in all organisational functions and behaviour. Lastly, based on the theoretical findings of the literature survey, a questionnaire was developed and distributed amongst employees of the Nelson Mandela Metropolitan University (NMMU). As a result of this study it was clear that it is imperative that the decision to implement the leadership and communication strategies proposed in the integrated model remains with the senior management. The organisation will only experience success while coordinating these strategies if senior management is totally committed to the process.
- Full Text:
- Date Issued: 2011
- Authors: Roodt, Kendra-Lynn
- Date: 2011
- Subjects: Consolidation and merger of corporation
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8650 , vital:26417
- Description: A merger occurs when two or more organisations integrate for a specific reason and become one entity in order to ensure success. Careful consideration and thorough planning must be done and several steps need to be followed to avoid a merger being unsuccessful. Good leadership and communication strategies are the key to a successful merger. This study deals with the strategies for value-creation in a post-merged organisation and the main problem that this research study addressed was: What strategies could an organisation use to ensure that desired values are created in a post-merged organisation? To answer the above question it was necessary to address the preferred organisational values and outcomes of a successful merger and leadership strategies that organisations can utilise to ensure that the preferred values and outcomes of a merger are achieved. Thereafter, various models were outlined and evaluated and a proposed integrated model for the implementation of desired values in a merged institution element was developed to ensure that the members of the organisation internalise the desired values and that these values are reflected in all organisational functions and behaviour. Lastly, based on the theoretical findings of the literature survey, a questionnaire was developed and distributed amongst employees of the Nelson Mandela Metropolitan University (NMMU). As a result of this study it was clear that it is imperative that the decision to implement the leadership and communication strategies proposed in the integrated model remains with the senior management. The organisation will only experience success while coordinating these strategies if senior management is totally committed to the process.
- Full Text:
- Date Issued: 2011
The impact of human resource management practices on the psychological contract during a psychological recession
- Theron, Anthonie Van Straaten
- Authors: Theron, Anthonie Van Straaten
- Date: 2011
- Subjects: Psychology, Industrial , Contracts -- Psychological aspects , Organisational behaviour
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8772 , http://hdl.handle.net/10948/d1012611 , Psychology, Industrial , Contracts -- Psychological aspects , Organisational behaviour
- Description: The aim of this study was to investigate the impact of Human Resource Management (HRM) practices on the psychological contracts of employees who have been negatively impacted by the widespread psychological recession. The psychological contract that exists between employees and organisations is brittle due to the psychological recession, which is defined as an emotional state in which employees feel extremely vulnerable to economic hardship. This contributes to a negative and cynical view of the present and an even bleaker view of the future. Breach of the psychological contract has severe negative consequences for employees and organisations. These include reduced employee well-being, trust levels, various organisational citizenship behaviours, increased cynical attitudes toward the organisation, and stronger intention to quit. The target population for the present study consisted of all permanent support staff working at an organisation that has recently went through a large-scale retrenchment exercise (n=52). A self-administered questionnaire was distributed amongst employees. The findings suggest that when the harsh effects of the psychological recession increase, employees are more likely to engage in various destructive behaviours at work due to breach and violation of their psychological contracts. Furthermore, the results indicated that an increase in the number of progressive HRM practices correlated with a decrease in breach and violation of the psychological contract. It was further revealed that the widespread psychological recession may make the employment relationship brittle and prone to breach and violation. The findings suggest that through the effective development and application of many explicit HRM practices, employees’ psychological contracts may become less fragile to breach and violation during a psychological recession.
- Full Text:
- Date Issued: 2011
- Authors: Theron, Anthonie Van Straaten
- Date: 2011
- Subjects: Psychology, Industrial , Contracts -- Psychological aspects , Organisational behaviour
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8772 , http://hdl.handle.net/10948/d1012611 , Psychology, Industrial , Contracts -- Psychological aspects , Organisational behaviour
- Description: The aim of this study was to investigate the impact of Human Resource Management (HRM) practices on the psychological contracts of employees who have been negatively impacted by the widespread psychological recession. The psychological contract that exists between employees and organisations is brittle due to the psychological recession, which is defined as an emotional state in which employees feel extremely vulnerable to economic hardship. This contributes to a negative and cynical view of the present and an even bleaker view of the future. Breach of the psychological contract has severe negative consequences for employees and organisations. These include reduced employee well-being, trust levels, various organisational citizenship behaviours, increased cynical attitudes toward the organisation, and stronger intention to quit. The target population for the present study consisted of all permanent support staff working at an organisation that has recently went through a large-scale retrenchment exercise (n=52). A self-administered questionnaire was distributed amongst employees. The findings suggest that when the harsh effects of the psychological recession increase, employees are more likely to engage in various destructive behaviours at work due to breach and violation of their psychological contracts. Furthermore, the results indicated that an increase in the number of progressive HRM practices correlated with a decrease in breach and violation of the psychological contract. It was further revealed that the widespread psychological recession may make the employment relationship brittle and prone to breach and violation. The findings suggest that through the effective development and application of many explicit HRM practices, employees’ psychological contracts may become less fragile to breach and violation during a psychological recession.
- Full Text:
- Date Issued: 2011
The influence of 1950s fashion photographers, Richard Avedon and Irving Penn, on photographers Matthew Rolston and Steven Meisel
- Authors: Cordier, Astrid
- Date: 2011
- Subjects: Fashion photpgraphy , Photographers -- United States
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8496 , http://hdl.handle.net/10948/d1008112 , Fashion photpgraphy , Photographers -- United States
- Description: Photography has been used to record and document periods in time, which Wells (2001:19) acknowledges by stating that, “…photographs are records and documents which pin down the changing world of appearance”. Richard Avedon and Irving Penn made a significant contribution to fashion photography during the 1950s but this has seldom been explored in a scholarly way. By defining the characteristics of Avedon and Penn’s work, a possible understanding of their influence on contemporary fashion photographers, Matthew Rolston and Steven Meisel may be determined and so expand on the understanding of the contribution of Avedon and Penn to contemporary fashion photography. Avedon, Penn, Rolston and Meisel’s fashion photographs will be visually analysed to show the similarities and the relevance of 1950s fashion photography to contemporary fashion photography. Paul Martin Lester’s (2003) method of visual analysis will be used as the basis for this analysis. The reason for choosing Lester’s methods of visual analysis is that it can be applied to all fields of visual art and design. Contemporary fashion photography draws on many different stylistic devices and periods in history for its re-invention, so it is important to understand what constitutes the defining characteristics of a stylistic period in history to be able to revisit it in contemporary photography.
- Full Text:
- Date Issued: 2011
- Authors: Cordier, Astrid
- Date: 2011
- Subjects: Fashion photpgraphy , Photographers -- United States
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8496 , http://hdl.handle.net/10948/d1008112 , Fashion photpgraphy , Photographers -- United States
- Description: Photography has been used to record and document periods in time, which Wells (2001:19) acknowledges by stating that, “…photographs are records and documents which pin down the changing world of appearance”. Richard Avedon and Irving Penn made a significant contribution to fashion photography during the 1950s but this has seldom been explored in a scholarly way. By defining the characteristics of Avedon and Penn’s work, a possible understanding of their influence on contemporary fashion photographers, Matthew Rolston and Steven Meisel may be determined and so expand on the understanding of the contribution of Avedon and Penn to contemporary fashion photography. Avedon, Penn, Rolston and Meisel’s fashion photographs will be visually analysed to show the similarities and the relevance of 1950s fashion photography to contemporary fashion photography. Paul Martin Lester’s (2003) method of visual analysis will be used as the basis for this analysis. The reason for choosing Lester’s methods of visual analysis is that it can be applied to all fields of visual art and design. Contemporary fashion photography draws on many different stylistic devices and periods in history for its re-invention, so it is important to understand what constitutes the defining characteristics of a stylistic period in history to be able to revisit it in contemporary photography.
- Full Text:
- Date Issued: 2011
The simulation of vehicle engine cooling in a climatic chamber
- Authors: Badenhorst, Kenneth Merwin
- Date: 2011
- Subjects: Automobiles -- Motors -- Cooling systems , Automobiles -- Air conditioning
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9615 , http://hdl.handle.net/10948/1454 , Automobiles -- Motors -- Cooling systems , Automobiles -- Air conditioning
- Description: The simulation of vehicle engine cooling validation in a Climatic chamber will benefit all vehicle manufacturers that are responsible for the design or the localization of parts used in a vehicle's engine cooling system. The ability to test the vehicle in-house allows testing at any time of the year; it provides repeatable and comparative data, and accelerates component level approval, which in itself reduces program timing and cost. For this dissertation road level testing was conducted in Upington using a TD1200 Superflow towing dynamometer, while the in-house testing was performed on a ROTOTEST chassis dynamometer in a Climatic chamber. All tests were conducted according to GENERAL MOTORS SOUTH AFRICA global testing standards. Statistical analyses of the test data were used to determine the relationship between parameters measured and results obtained. The major contributors to the simulation process was identified and implemented to improve measurement quality and test results. The result was an accurate simulation between road and chamber testing, hence the possibility of moving away from road testing and conduct simulated chamber testing. The presented dissertation is useful for the understanding of basic vehicle cooling testing and the methodology of simulated testing in an environmentally controlled chamber.
- Full Text:
- Date Issued: 2011
- Authors: Badenhorst, Kenneth Merwin
- Date: 2011
- Subjects: Automobiles -- Motors -- Cooling systems , Automobiles -- Air conditioning
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9615 , http://hdl.handle.net/10948/1454 , Automobiles -- Motors -- Cooling systems , Automobiles -- Air conditioning
- Description: The simulation of vehicle engine cooling validation in a Climatic chamber will benefit all vehicle manufacturers that are responsible for the design or the localization of parts used in a vehicle's engine cooling system. The ability to test the vehicle in-house allows testing at any time of the year; it provides repeatable and comparative data, and accelerates component level approval, which in itself reduces program timing and cost. For this dissertation road level testing was conducted in Upington using a TD1200 Superflow towing dynamometer, while the in-house testing was performed on a ROTOTEST chassis dynamometer in a Climatic chamber. All tests were conducted according to GENERAL MOTORS SOUTH AFRICA global testing standards. Statistical analyses of the test data were used to determine the relationship between parameters measured and results obtained. The major contributors to the simulation process was identified and implemented to improve measurement quality and test results. The result was an accurate simulation between road and chamber testing, hence the possibility of moving away from road testing and conduct simulated chamber testing. The presented dissertation is useful for the understanding of basic vehicle cooling testing and the methodology of simulated testing in an environmentally controlled chamber.
- Full Text:
- Date Issued: 2011
The use of a Roving Creel Survey to monitor exploited coastal fish species in the Goukamma Marine Ptrotected Area, South Africa
- Authors: Van Zyl, Carika Sylvia
- Date: 2011
- Subjects: Fishing surveys , Fishery management -- South Africa , Fish populations -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10748 , http://hdl.handle.net/10948/1348 , Fishing surveys , Fishery management -- South Africa , Fish populations -- South Africa
- Description: A fishery-dependant monitoring method of the recreational shore-based fishery was undertaken in the Goukamma Marine Protected Area (MPA) on the south coast of South Africa for a period of 17 months. The method used was a roving creel survey (RCS), with dates, times and starting locations chosen by stratified random sampling. The MPA was divided into two sections, Buffalo Bay and Groenvlei, and all anglers encountered were interviewed. Catch and effort data were collected and catch per unit effort (CPUE) was calculated from this. The spatial distribution of anglers was also mapped. A generalized linear model (GLM) was fitted to the effort data to determine the effects of month and day type on the variability of effort in each section. Fitted values showed that effort was significantly higher on weekends than on week days, in both sections. A total average of 3662 anglers fishing 21 428 hours annually is estimated within the reserve with a mean trip length of 5.85 hours. Angler numbers were higher per unit coastline length in Buffalo Bay than Groenvlei, but fishing effort (angler hours) was higher in Groenvlei. Density distributions showed that anglers were clumped in easily accessible areas and that they favored rocky areas and mixed shores over sandy shores. Catch documented between October 2008 and December 2009 included a total of 361 fish, of 27 species from 12 families. Sparidae had the highest contribution (12 species). A Shannon-Weiner diversity index showed that diversity was higher in Buffalo Bay (0.81) than Groenvlei (0.57). Catch composition of retained fish (336 individuals) showed that the six numerically most important species were blacktail (Diplodus sargus capensis) (66 percent of catch), followed by galjoen (Dichistius capensis) at 11 percent, Cape stumpnose (Rhabdosargus holubi), belman (Umbrina robinsonii) and strepie at 3 percent, and elf (Pomatomus saltatrix) at 2 percent. Catch composition of an earlier study in Goukamma (Pradervand and Hiseman 2006) was compared with the present study, as well as data from the De Hoop MPA, which is closed to fishing. A multi-dimensional scaling plot of catch composition showed tight clustering of the De Hoop samples, and high variability among the Goukamma samples. A bray-curtis similarity index and dendrogram of similarity between study sites and study periods showed that there was an 83 percent similarity among De Hoop samples and a 75 percent similarity among Goukamma samples (ignoring the two outliers). The two sites are different with respect to species composition, but this is expected because they are different areas. Differences between time periods in Goukamma (i.e. the previous study versus the present study) were not significant. The most significant result from the catch composition analyses is the high variability among the Goukamma samples. This can be explained by the variable fishing methods used by anglers in Goukamma, compared with the standardized fishing methods used by researchers in De Hoop, and the fact that fish are more abundant and populations are more stable in De Hoop – giving higher sample sizes which reduce the variability in the statistics. Species-specific CPUE was calculated for the six numerically most important species. In both sections, CPUE was highest for blacktail, with an average of 0.133 fish per hour for Groenvlei, and 0.060 fish per hour for Buffalo Bay, over the 12 months. The second highest CPUE values per section were 0.030 for galjoen in Groenvlei and 0.039 for strepie in Buffalo Bay. Remaining CPUE values ranged from 0.014 (belman in Groenvlei) to the lowest value of 0.001 (strepie in Groenvlei). Total estimated CPUE for these six species in the MPA using the estimated effort and catch results amounted to 0.018 fish per hour. An annual estimated 3897 fish were landed in the reserve during 2009. Most fish (n=2481, 64 percent) were caught in the Groenvlei section. Numbers of blacktail were the highest of all species, within both sections (2353 fish). Strepie was the next most common (561 fish), but was caught almost entirely within the Buffalo Bay section (97 percent of individuals), followed by galjoen (548 fish) caught mostly within the Groenvlei section (92 percent of individuals). Size comparisons of the six species between the Goukamma and De Hoop MPAs showed that ranges in size are similar, but there are substantial differences in mean sizes between the two MPAs. Sample sizes of all species from the Goukamma MPA were too small to draw conclusions about stock status, except for blacktail. The Goukamma MPA is a popular fishing destination and angler effort is high. It can be considered a node of exploitation for surf zone fish, for which it provides no protection. Even though the MPA allows shore angling, sustainable fishing practices should be incorporated in management plans if the MPA is expected to protect and conserve its stocks. Of noteworthy concern is the occurrence of illegal night fishing (the public may not enter the reserve between sunrise and sunset) which leads to underestimates of catch and effort (night surveys were not conducted because of safety concerns). It is recommended that more communication should take place between the angling community and the reserve management. Sign boards giving information on species which are under pressure, and why they are under pressure, with a short explanation on their life cycles, is advised. The roving creel survey method was suitable for the study area and delivered statistically rigorous results. I thus recommend that it is continued in the future by management. I make some recommendations for reducing costs of future surveys, as well as for altering the survey design if funds are very limited.
- Full Text:
- Date Issued: 2011
- Authors: Van Zyl, Carika Sylvia
- Date: 2011
- Subjects: Fishing surveys , Fishery management -- South Africa , Fish populations -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10748 , http://hdl.handle.net/10948/1348 , Fishing surveys , Fishery management -- South Africa , Fish populations -- South Africa
- Description: A fishery-dependant monitoring method of the recreational shore-based fishery was undertaken in the Goukamma Marine Protected Area (MPA) on the south coast of South Africa for a period of 17 months. The method used was a roving creel survey (RCS), with dates, times and starting locations chosen by stratified random sampling. The MPA was divided into two sections, Buffalo Bay and Groenvlei, and all anglers encountered were interviewed. Catch and effort data were collected and catch per unit effort (CPUE) was calculated from this. The spatial distribution of anglers was also mapped. A generalized linear model (GLM) was fitted to the effort data to determine the effects of month and day type on the variability of effort in each section. Fitted values showed that effort was significantly higher on weekends than on week days, in both sections. A total average of 3662 anglers fishing 21 428 hours annually is estimated within the reserve with a mean trip length of 5.85 hours. Angler numbers were higher per unit coastline length in Buffalo Bay than Groenvlei, but fishing effort (angler hours) was higher in Groenvlei. Density distributions showed that anglers were clumped in easily accessible areas and that they favored rocky areas and mixed shores over sandy shores. Catch documented between October 2008 and December 2009 included a total of 361 fish, of 27 species from 12 families. Sparidae had the highest contribution (12 species). A Shannon-Weiner diversity index showed that diversity was higher in Buffalo Bay (0.81) than Groenvlei (0.57). Catch composition of retained fish (336 individuals) showed that the six numerically most important species were blacktail (Diplodus sargus capensis) (66 percent of catch), followed by galjoen (Dichistius capensis) at 11 percent, Cape stumpnose (Rhabdosargus holubi), belman (Umbrina robinsonii) and strepie at 3 percent, and elf (Pomatomus saltatrix) at 2 percent. Catch composition of an earlier study in Goukamma (Pradervand and Hiseman 2006) was compared with the present study, as well as data from the De Hoop MPA, which is closed to fishing. A multi-dimensional scaling plot of catch composition showed tight clustering of the De Hoop samples, and high variability among the Goukamma samples. A bray-curtis similarity index and dendrogram of similarity between study sites and study periods showed that there was an 83 percent similarity among De Hoop samples and a 75 percent similarity among Goukamma samples (ignoring the two outliers). The two sites are different with respect to species composition, but this is expected because they are different areas. Differences between time periods in Goukamma (i.e. the previous study versus the present study) were not significant. The most significant result from the catch composition analyses is the high variability among the Goukamma samples. This can be explained by the variable fishing methods used by anglers in Goukamma, compared with the standardized fishing methods used by researchers in De Hoop, and the fact that fish are more abundant and populations are more stable in De Hoop – giving higher sample sizes which reduce the variability in the statistics. Species-specific CPUE was calculated for the six numerically most important species. In both sections, CPUE was highest for blacktail, with an average of 0.133 fish per hour for Groenvlei, and 0.060 fish per hour for Buffalo Bay, over the 12 months. The second highest CPUE values per section were 0.030 for galjoen in Groenvlei and 0.039 for strepie in Buffalo Bay. Remaining CPUE values ranged from 0.014 (belman in Groenvlei) to the lowest value of 0.001 (strepie in Groenvlei). Total estimated CPUE for these six species in the MPA using the estimated effort and catch results amounted to 0.018 fish per hour. An annual estimated 3897 fish were landed in the reserve during 2009. Most fish (n=2481, 64 percent) were caught in the Groenvlei section. Numbers of blacktail were the highest of all species, within both sections (2353 fish). Strepie was the next most common (561 fish), but was caught almost entirely within the Buffalo Bay section (97 percent of individuals), followed by galjoen (548 fish) caught mostly within the Groenvlei section (92 percent of individuals). Size comparisons of the six species between the Goukamma and De Hoop MPAs showed that ranges in size are similar, but there are substantial differences in mean sizes between the two MPAs. Sample sizes of all species from the Goukamma MPA were too small to draw conclusions about stock status, except for blacktail. The Goukamma MPA is a popular fishing destination and angler effort is high. It can be considered a node of exploitation for surf zone fish, for which it provides no protection. Even though the MPA allows shore angling, sustainable fishing practices should be incorporated in management plans if the MPA is expected to protect and conserve its stocks. Of noteworthy concern is the occurrence of illegal night fishing (the public may not enter the reserve between sunrise and sunset) which leads to underestimates of catch and effort (night surveys were not conducted because of safety concerns). It is recommended that more communication should take place between the angling community and the reserve management. Sign boards giving information on species which are under pressure, and why they are under pressure, with a short explanation on their life cycles, is advised. The roving creel survey method was suitable for the study area and delivered statistically rigorous results. I thus recommend that it is continued in the future by management. I make some recommendations for reducing costs of future surveys, as well as for altering the survey design if funds are very limited.
- Full Text:
- Date Issued: 2011
User-interface evaluation metrics for a typical M-Learning application
- Authors: Kantore, Adelin
- Date: 2011
- Subjects: User interfaces (Computer systems) , Mobile communication systems
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9749 , http://hdl.handle.net/10948/1452 , User interfaces (Computer systems) , Mobile communication systems
- Description: Usability is seen as an important aspect for the quality of an M-learning application. Yet very little research has been conducted in this area – particularly in South Africa. Even though the trials of M-learning projects have been witnessed in the country during the last five years, very little is known about the systems that were implemented as regards their usability. Additionally, metrics and measures used in evaluating usability have not been reported. A need exists for relevant metrics to M-learning usability. The primary objective of this work was to propose metrics and measures – for the purpose of evaluating the User-Interfacedesign usability of M-learning application. The research included a literature review of M-learning, as well as the development of metrics and measures based on the Goal Question Metric (GQM) Model. This model has helped provide a reference model and measurements for evaluating the User-InterfaceUsability. A case study was used as a research strategy. An application called Kontax was selected for evaluation by users and expert reviewers. Data-collection methods consisted of User Testing and Heuristics evaluations. Data-gathering instruments included the use of surveys and user- satisfaction questionnaires based on the proposed metrics, task scenarios and expert-reviewed questionnaires based on the proposed metrics; all these instruments were developed. It was found that, although the users thought the system was very interesting, and they wished to hear more about it in the future, the system nevertheless had usability flaws which made it difficult to use. All the users failed to register so that they could use the system; additionally, the system-error messages did not help the users recognize, and recover from an error – leaving the user to simply log out. Help was not adequate, thus making it difficult for first-time users to know what to do when they needed support. The system was also said to have a lot of information presented on its home page, which caused the user to be disoriented. The Kontax application has usability flaws which should be III attended to, in order to improve its usability. The proposed metrics proved to be very useful in evaluating the usability of the tool.
- Full Text:
- Date Issued: 2011
- Authors: Kantore, Adelin
- Date: 2011
- Subjects: User interfaces (Computer systems) , Mobile communication systems
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9749 , http://hdl.handle.net/10948/1452 , User interfaces (Computer systems) , Mobile communication systems
- Description: Usability is seen as an important aspect for the quality of an M-learning application. Yet very little research has been conducted in this area – particularly in South Africa. Even though the trials of M-learning projects have been witnessed in the country during the last five years, very little is known about the systems that were implemented as regards their usability. Additionally, metrics and measures used in evaluating usability have not been reported. A need exists for relevant metrics to M-learning usability. The primary objective of this work was to propose metrics and measures – for the purpose of evaluating the User-Interfacedesign usability of M-learning application. The research included a literature review of M-learning, as well as the development of metrics and measures based on the Goal Question Metric (GQM) Model. This model has helped provide a reference model and measurements for evaluating the User-InterfaceUsability. A case study was used as a research strategy. An application called Kontax was selected for evaluation by users and expert reviewers. Data-collection methods consisted of User Testing and Heuristics evaluations. Data-gathering instruments included the use of surveys and user- satisfaction questionnaires based on the proposed metrics, task scenarios and expert-reviewed questionnaires based on the proposed metrics; all these instruments were developed. It was found that, although the users thought the system was very interesting, and they wished to hear more about it in the future, the system nevertheless had usability flaws which made it difficult to use. All the users failed to register so that they could use the system; additionally, the system-error messages did not help the users recognize, and recover from an error – leaving the user to simply log out. Help was not adequate, thus making it difficult for first-time users to know what to do when they needed support. The system was also said to have a lot of information presented on its home page, which caused the user to be disoriented. The Kontax application has usability flaws which should be III attended to, in order to improve its usability. The proposed metrics proved to be very useful in evaluating the usability of the tool.
- Full Text:
- Date Issued: 2011
Wireless rotational process monitoring system
- Authors: Odendaal, Morné
- Date: 2011
- Subjects: Manufacturing processes -- Automation
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9599 , http://hdl.handle.net/10948/1347 , Manufacturing processes -- Automation
- Description: The manufacturing industry is constantly looking for ways to reduce production costs and at the same time to increase productivity. Automation of common manufacturing operations is one of these methods. By automating common manufacturing operations; various machines, robots, control systems and information technologies are used to reduce the overall human input requirement (mental and physical). Recent advances in technology have made it possible to now also automate (or facilitate) the maintenance requirement of these machines and tools. Modern tools and machines, which can estimate when it will fail or when failure is imminent have obvious advantages for predictive maintenance purposes. Another function of this technology is to determine how efficiently a tool or machine operates, or what the quality of the produced goods is. Predictive maintenance can decrease manufacturing plant or machine down times – which have a positive effect on cost-savings – has gained considerable importance over the last two decades.
- Full Text:
- Date Issued: 2011
- Authors: Odendaal, Morné
- Date: 2011
- Subjects: Manufacturing processes -- Automation
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9599 , http://hdl.handle.net/10948/1347 , Manufacturing processes -- Automation
- Description: The manufacturing industry is constantly looking for ways to reduce production costs and at the same time to increase productivity. Automation of common manufacturing operations is one of these methods. By automating common manufacturing operations; various machines, robots, control systems and information technologies are used to reduce the overall human input requirement (mental and physical). Recent advances in technology have made it possible to now also automate (or facilitate) the maintenance requirement of these machines and tools. Modern tools and machines, which can estimate when it will fail or when failure is imminent have obvious advantages for predictive maintenance purposes. Another function of this technology is to determine how efficiently a tool or machine operates, or what the quality of the produced goods is. Predictive maintenance can decrease manufacturing plant or machine down times – which have a positive effect on cost-savings – has gained considerable importance over the last two decades.
- Full Text:
- Date Issued: 2011