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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.
381

Value Creation from IT Systems Integration : A Benefits, Openness and Price Model Perspective

Brege, Harald, Hampusson, Petter January 2014 (has links)
This thesis is aimed at finding out how integration of IT systems creates value for companies and is conducted as a qualitative case study, where six companies are interviewed about their integration solutions. The interviewees were five CIOs and one Managing Director. Four of the companies interviewed have genuine Application Integration solutions, where a middleware platform is the hub of the integration system, while the remaining two used solutions based around a system of point-to-point integrations. The value of an integration solution will be considered a combination of the benefits an integration solution provides, openness aspects, and the price models used to pay for the system. Value is defined as what the company gains, in monetary terms, in exchange for what it pays for an offering (Anderson, Kumar, & Narus, 2007). This definition further defines the attractiveness of an offering as the value minus the price. When discussing the value of an IT system, it is important to consider the difference between the potential value, which is the maximum the system can deliver with an ideal environment and usage, and the realised value, which is some fraction of the potential value that a company actually gains, of the system (Davern & Kauffman, 2000; Smith & Nagle, 2005). Affecting the realisation of potential value are certain factors, called conversion contingencies, which are things like preparation of implementation projects or efforts at using all aspects of a system. Benefits are analysed according to a framework that divides IT systems benefits into five categories: operational, managerial, strategic, IT infrastructure, and organisational benefits (Shang & Seddon, 2000). These categories are focused around, respectively, productivity gains, enhanced planning capabilities, new strategic capabilities, better IT administration, and process improvements. We conclude that most companies gain several large benefits in the operational and managerial types, while the other three types have fewer reported benefits. We conclude that there seems to be quite a lot of unrealised potential value in the integration solutions, if the view of the potential of integration from the technological side is used. We also conclude that companies in certain environments and with more complex organisational structures seem to have a larger value potential than others, meaning they have more to potentially gain from an integration solution. For openness, five aspects of open source software are studied: lock-in, cost, security, flexibility/modifiability, and community. These aspects are mainly derived from literature on open source. The first conclusion we make regarding openness is that most of the CIOs seems not to be fully aware of what the term truly entails. Companies’ opinions regarding open source can be seen on a range between two extremes: those who want to modify or develop software and those who only want to use standard systems. The former category has more to gain from the aspects of cost and modifiability than the latter, but both categories can gain from the lock-in, security, and community aspects. The combination of factors that creates the price of an offering can be described as a price model. To study the value of price models of integration solutions, the SBIFT model (Iveroth, et al., 2013) is used, where the price model is divided into five dimensions, scope, base, influence, formula and temporal rights. None of the interviewed companies were satisfied with the alternatives for price models currently on the market. It was concluded that the dissatisfaction mostly stemmed from the facts that the companies had little opportunity to affect the price model, meaning they could not adapt it to better fit their internal conditions, the complexity of the license agreements, and that it was hard to get vendors to cite a price for a system. Price models that would be more attractive are e.g. models with a larger variable part, like transaction-based ones, or models that affect the time scale of the contract, even though no single model seemed more attractive to all companies.
382

Rapporteringsfunktion i Moodle

Strömbergsson, Fredrik January 2014 (has links)
Maincon AB är ett företag som sysslar med att skapa kurser tillsammans medandra företag och sedan lära ut dessa via Moodle som är en plattform för elärande.Företaget ville ha hjälp med att förbättra en rapportfunktion för eninsticksmodul i Moodle så att en bättre överblick över situationen i en kurskunde fås. Detta projekt är ett fortsättningsarbete på ett tidigare projekt där ettdiagram introducerades för att visuellt ge en bättre överblicksbild. Metodensom valdes var att skapa en egen version av denna rapportfunktion då dendåvarande PHP lösningen var bristfällig. En ny och förbättrad version skapadesi JavaScript där mer information kunde visas och filtreras i HTML och sammainformation kan exporteras till CSV som sen kan importeras till Excel. / Maincon AB is a company that among other things develops courses togetherwith other companies and then teach these courses via Moodle which is aplatform for e-learning. The company wanted help to improve a report-functionfor a plugin in Moodle so they could get a better overview of the situation in acourse. This project is a continuation of a previous project that implemented achart that visually improved the overview. In this project, the method toimprove the overview was to create a new version of the previous PHP solutionthat lacked the functionality. A new and improved version was created withJavaScript where more information could be shown and filtered in HTML, andthe same information could be exported to CSV and then imported to Excel.
383

Open Source and Electronic Voting: A New Strategy Toward Technical Procurement for Voting Systems

Kesselman, Andor 01 January 2014 (has links)
Direct Recording Electronic Voting Systems (DRE) are some of the most popular forms of electronic voting and yet they are riddled with problems. Current voting systems are poorly designed and migration to newer software can be costly. Inadequate software solutions in voting systems have led to security flaws, bad tabulation, and partisan software design. As government proceeds into an increasingly sophisticated era of voting technology, it needs to consider a better platform. This thesis explores the government procurement strategy associated with modern Direct Recording Electronic Voting Systems. The thesis argues that governments should adopt an open source solution (OSS) for future IT acquisition of voting systems. Adopting an open source solution not only provides practical advantages such as better software design, cheaper implementation, and avoidance of vendor lock-in, but also proposes that OSS provides a strong foundation for future IT policy. Open source’s strength in transparency provides a key factor in voting system design. The thesis recommends that governments adopt a four part strategy for future OSS adoption with voting system. 1) Approve an independent, pro-OSS certification organization that works closely with the U.S Election Assistance Commission, National Institute of Standards and Technology, and other system organizations to create the optimal voting systems guidelines. 2) Update FAR requirements to greater accommodate open source procurement policy. 3) Assist local and state jurisdictions to acquire OSS for DRE machines. 4) Promote open source business strategy by hiring vendors for system integration and analysis This thesis contends that these four policies will improve the electronic voting experience and allow for better future innovation and adoption IT strategies.
384

Object-oriented multi-physics applied to spatial reactor dynamics / Ivor David Clifford

Clifford, Ivor David January 2007 (has links)
Traditionally coupled field reactor analysis has been carried out using several loosely coupled solvers, each having been developed independently from the others. In the field of multi-physics, the current generation of object-oriented toolkits provides robust close coupling of multiple fields on a single framework. This research investigates the suitability of such frameworks, in particular the Open-source Field Operation and Manipulation (OpenFOAM) framework, for the solution of spatial reactor dynamics problems. For this a subset of the theory of the Time-dependent Neutronics and Temperatures (TINTE) code, a time-dependent two-group diffusion solver, was implemented in the OpenFOAM framework. This newly created code, called diffusionFOAM, was tested for a number of steady-state and transient cases. The solver was found to perform satisfactorily, despite a number of numerical issues. The object-oriented structure of the framework allowed for rapid and efficient development of the solver. Further investigations suggest that more advanced transport methods and higher order spatial discretization schemes can potentially be implemented using such a framework as well. / Thesis (M.Ing. (Nuclear Engineering))--North-West University, Potchefstroom Campus, 2008.
385

Building a scalable virtual community on commodity hardware and open source software / by Andreas Alberts

Alberts, Andreas Jacobus January 2008 (has links)
The information era has brought upon us waves of change that brings affordable technology Within the reach of the average person. Computers connected to the Internet, part of our daily living, have led to the formation of online communities. In the spirit of communal efforts, a community cannot be controlled or managed into a specific form or direction. A community has a need to concentrate its efforts towards a common goal or vision, therefore sufficiently nonrestrictive infrastructure is needed to enable the community members to contribute towards their goal. We design and build infrastructure to support a virtual community, according to the needs of the community. Community members can easily locate and exchange files among each other, interact in private and public chat rooms by means of instant text messages, as well as make announcements and participate in group discussions in a Web based environment. Additional needs are identified and tended to by means of various value adding services. We also formulate a management strategy to lead the community towards self-sustenance / Thesis (M. Ing. (Computer and Electronical Engineering))--North-West University, Potchefstroom Campus, 2009.
386

Enterprise resource planning in manufacturing SMEs in the Vaal Triangle / Dlodlo J.B.

Dlodlo, Joseph Bhekizwe January 2011 (has links)
The adoption of Enterprise Resource Planning tools has improved business processes in organisations. This increase has, however come with challenges for the small and medium business sector. First the adoption and deployment of proprietary ERP comes at great cost for organisations whilst it is also difficult for the organisations to ensure that scalability is introduced due to the dynamic change in the SME sector. The adoption and use of open source ERP tools then presents an opportunity for the SME sector. The usage of open source software has increased over the years. This increase has also extended to open source ERP tools. These tools offer the same functions as the proprietary at a fraction of the cost. Despite the benefits that open source ERP offers diffusion of this technology into the SME sector in South Africa has been minimal. This means the SME sector in South Africa is not benefiting from the widely available cost effective open source ERP available in the market. An opportunity therefore exists for them to utilise the technology to gain competitive advantage. The research was done primarily to determine the open source ERP adoption patterns of SMEs in the Vaal region. The research sought to determine the drivers for ERP adoption and barriers to adoption. Focus was specifically extended to investigating knowledge on open source alternatives. The results from the research indicate that the SMEs understand the benefits of adopting ERP for their businesses. The research further revealed that the adoption factors identified in the literature are still relevant in South Africa. The factors identified included costs, lack of training, lack of support, lack of knowledge and the lack of open source vendors. The empirical research also identified that the SME still harbour fear about open source ERP tools due to lack of training ,support and knowledge .From the study it is clear that a new approach needs to be taken to encourage adoption of open source ERP. These approaches include giving incentives to SMEs to adopt open source ERP. These incentives may be in the form of training packages and skills workshops to help overcome the barriers and improve implementation of open source ERP. The research identified the critical need for increased formal education and training in open source software development and emphasis on ERP tools. Government research bodies need to play a role in this area. For an example, there is need for SME and university collaborations in open source ERP deployment, whereby the latter needs to include software development tools in their curricula for SMEs so as to increase awareness. Clear–cut comparisons of existing proprietary systems against open source systems by focusing on functional and technological requirements need to be undertaken. This will help to reflect a cost benefit analysis as well as interoperability between the open source ERP and existing systems. During the adoption process, SME are encouraged to go through the full life cycle of open source ERP adoption. In this cycle the SME needs to do a thorough analysis regarding selection, implementation, integration, migration, training and evaluation of installed tools. That way they will gain the competitive advantage afforded by the tools. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2012.
387

Object-oriented multi-physics applied to spatial reactor dynamics / Ivor David Clifford

Clifford, Ivor David January 2007 (has links)
Traditionally coupled field reactor analysis has been carried out using several loosely coupled solvers, each having been developed independently from the others. In the field of multi-physics, the current generation of object-oriented toolkits provides robust close coupling of multiple fields on a single framework. This research investigates the suitability of such frameworks, in particular the Open-source Field Operation and Manipulation (OpenFOAM) framework, for the solution of spatial reactor dynamics problems. For this a subset of the theory of the Time-dependent Neutronics and Temperatures (TINTE) code, a time-dependent two-group diffusion solver, was implemented in the OpenFOAM framework. This newly created code, called diffusionFOAM, was tested for a number of steady-state and transient cases. The solver was found to perform satisfactorily, despite a number of numerical issues. The object-oriented structure of the framework allowed for rapid and efficient development of the solver. Further investigations suggest that more advanced transport methods and higher order spatial discretization schemes can potentially be implemented using such a framework as well. / Thesis (M.Ing. (Nuclear Engineering))--North-West University, Potchefstroom Campus, 2008.
388

Building a scalable virtual community on commodity hardware and open source software / by Andreas Alberts

Alberts, Andreas Jacobus January 2008 (has links)
The information era has brought upon us waves of change that brings affordable technology Within the reach of the average person. Computers connected to the Internet, part of our daily living, have led to the formation of online communities. In the spirit of communal efforts, a community cannot be controlled or managed into a specific form or direction. A community has a need to concentrate its efforts towards a common goal or vision, therefore sufficiently nonrestrictive infrastructure is needed to enable the community members to contribute towards their goal. We design and build infrastructure to support a virtual community, according to the needs of the community. Community members can easily locate and exchange files among each other, interact in private and public chat rooms by means of instant text messages, as well as make announcements and participate in group discussions in a Web based environment. Additional needs are identified and tended to by means of various value adding services. We also formulate a management strategy to lead the community towards self-sustenance / Thesis (M. Ing. (Computer and Electronical Engineering))--North-West University, Potchefstroom Campus, 2009.
389

Enterprise resource planning in manufacturing SMEs in the Vaal Triangle / Dlodlo J.B.

Dlodlo, Joseph Bhekizwe January 2011 (has links)
The adoption of Enterprise Resource Planning tools has improved business processes in organisations. This increase has, however come with challenges for the small and medium business sector. First the adoption and deployment of proprietary ERP comes at great cost for organisations whilst it is also difficult for the organisations to ensure that scalability is introduced due to the dynamic change in the SME sector. The adoption and use of open source ERP tools then presents an opportunity for the SME sector. The usage of open source software has increased over the years. This increase has also extended to open source ERP tools. These tools offer the same functions as the proprietary at a fraction of the cost. Despite the benefits that open source ERP offers diffusion of this technology into the SME sector in South Africa has been minimal. This means the SME sector in South Africa is not benefiting from the widely available cost effective open source ERP available in the market. An opportunity therefore exists for them to utilise the technology to gain competitive advantage. The research was done primarily to determine the open source ERP adoption patterns of SMEs in the Vaal region. The research sought to determine the drivers for ERP adoption and barriers to adoption. Focus was specifically extended to investigating knowledge on open source alternatives. The results from the research indicate that the SMEs understand the benefits of adopting ERP for their businesses. The research further revealed that the adoption factors identified in the literature are still relevant in South Africa. The factors identified included costs, lack of training, lack of support, lack of knowledge and the lack of open source vendors. The empirical research also identified that the SME still harbour fear about open source ERP tools due to lack of training ,support and knowledge .From the study it is clear that a new approach needs to be taken to encourage adoption of open source ERP. These approaches include giving incentives to SMEs to adopt open source ERP. These incentives may be in the form of training packages and skills workshops to help overcome the barriers and improve implementation of open source ERP. The research identified the critical need for increased formal education and training in open source software development and emphasis on ERP tools. Government research bodies need to play a role in this area. For an example, there is need for SME and university collaborations in open source ERP deployment, whereby the latter needs to include software development tools in their curricula for SMEs so as to increase awareness. Clear–cut comparisons of existing proprietary systems against open source systems by focusing on functional and technological requirements need to be undertaken. This will help to reflect a cost benefit analysis as well as interoperability between the open source ERP and existing systems. During the adoption process, SME are encouraged to go through the full life cycle of open source ERP adoption. In this cycle the SME needs to do a thorough analysis regarding selection, implementation, integration, migration, training and evaluation of installed tools. That way they will gain the competitive advantage afforded by the tools. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2012.
390

Enhancing Volunteered Geographical Information (VGI) Visualization with Open Source Web-Based Software

Deparday, Vivien January 2010 (has links)
Recent advances in information technology such as Web mapping and location-aware mobile devices have enabled non-experts to create, use and share volumes of spatial data in an increasingly accessible fashion. Such user-generated spatial data is usually referred to as Volunteered Geographic Information (VGI). Two of the fundamental challenges associated with the exploitation of VGI relate to information overload and extraction of meaning. In order to deal with these challenges and improve the utility of VGI, this thesis investigates the potential of several interactive geovisualization techniques including filtering, dynamic spatial aggregation, linking and brushing, and tag-based visualizations. As a preliminary work to explore and structure the new research field of VGI, a framework of the different types of VGI is elaborated and followed by a review of the challenges and current solutions related to the utilization of VGI. Based on this review, a web-based prototype is developed to serve as a platform for the evaluation of selected geovisualization techniques. The prototype is then used in a series of workshops with rich citizen-generated data related to place-based community assets. The results of the case study show that the implemented geovisualization techniques enable users to find relevant subsets of information and to gain new insights on the data. Based on the potential shown by these results, future research directions are suggested.

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