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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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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.
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Showing 1 to 3 of 3 (0.042 seconds)Spelling suggestions: "subject:"film service"" "subject:"fine service""
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Měření efektivnosti zavedení datových schránek / Measuring the effectiveness of the introduction of data boxesOvesný, Tomáš January 2009 (has links)
This work addresses the issue of data boxes information system, which supports electronic communication between public authorities and other bodies. Aim of the work is to identify measure and evaluate the effectiveness of the data boxes at selected public authorities when processing received and sent documents. The effectiveness is detected by using the proposed metrics and also based on the analysis conducted in order to examine the processing of documents at selected institutions. The effectiveness of data boxes is being researched at the Municipal Office Dub nad Moravou and the Czech Agriculture and Food Inspection Authority. The information needed for the process analysis and the data required for evaluating the effectiveness of the implementation of the proposed metrics were obtained from the staff of those institutions. The work is divided into four parts. The first part is a thorough description of the data boxes information system. The functionality, use, technical solutions and legislations of data boxes are described based on available information. The second part focuses on the description and analysis of selected public authorities and on the way they process received and outgoing mail. In the third part of the work appropriate metrics to assess the effectiveness of the data boxes are proposed, followed by implementation of two-phase measurements. In the fourth section the effectiveness of the data boxes is evaluated based on the measurements conducted at selected public authorities. The main contribution of this work is that it will be the first evaluation of the effectiveness of the data boxes in selected subjects approximately one month after the official launch. Another benefit is the proposal of process for the evaluation of the effectiveness of a very specific new information system within the body and a comprehensive description of the data boxes information system.
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Sistemas de arquivos paralelos: alternativas para a redução do gargalo no acesso ao sistema de arquivos / Parallel File Systems: alternatives to reduce the bottleneck in accessing the file systemCarvalho, Roberto Pires de 23 September 2005 (has links)
Nos últimos anos, a evolução dos processadores e redes para computadores de baixo custo foi muito maior se comparada com o aumento do desempenho dos discos de armazenamento de dados. Com isso, muitas aplicações estão encontrando dificuldades em atingir o pleno uso dos processadores, pois estes têm de esperar até que os dados cheguem para serem utilizados. Uma forma popular para resolver esse tipo de empecílio é a adoção de sistemas de arquivos paralelos, que utilizam a velocidade da rede local, além dos recursos de cada máquina, para suprir a deficiência de desempenho no uso isolado de cada disco. Neste estudo, analisamos alguns sistemas de arquivos paralelos e distribuídos, detalhando aqueles mais interessantes e importantes. Por fim, mostramos que o uso de um sistema de arquivos paralelo pode ser mais eficiente e vantajoso que o uso de um sistema de arquivos usual, para apenas um cliente. / In the last years, the evolution of the data processing power and network transmission for low cost computers was much bigger if compared to the increase of the speed of getting the data stored in disks. Therefore, many applications are finding difficulties in reaching the full use of the processors, because they have to wait until the data arrive before using. A popular way to solve this problem is to use a parallel file system, which uses the local network speed to avoid the performance bottleneck found in an isolated disk. In this study, we analyze some parallel and distributed file systems, detailing the most interesting and important ones. Finally, we show the use of a parallel file system can be more efficient than the use of a usual local file system, for just one client.
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Sistemas de arquivos paralelos: alternativas para a redução do gargalo no acesso ao sistema de arquivos / Parallel File Systems: alternatives to reduce the bottleneck in accessing the file systemRoberto Pires de Carvalho 23 September 2005 (has links)
Nos últimos anos, a evolução dos processadores e redes para computadores de baixo custo foi muito maior se comparada com o aumento do desempenho dos discos de armazenamento de dados. Com isso, muitas aplicações estão encontrando dificuldades em atingir o pleno uso dos processadores, pois estes têm de esperar até que os dados cheguem para serem utilizados. Uma forma popular para resolver esse tipo de empecílio é a adoção de sistemas de arquivos paralelos, que utilizam a velocidade da rede local, além dos recursos de cada máquina, para suprir a deficiência de desempenho no uso isolado de cada disco. Neste estudo, analisamos alguns sistemas de arquivos paralelos e distribuídos, detalhando aqueles mais interessantes e importantes. Por fim, mostramos que o uso de um sistema de arquivos paralelo pode ser mais eficiente e vantajoso que o uso de um sistema de arquivos usual, para apenas um cliente. / In the last years, the evolution of the data processing power and network transmission for low cost computers was much bigger if compared to the increase of the speed of getting the data stored in disks. Therefore, many applications are finding difficulties in reaching the full use of the processors, because they have to wait until the data arrive before using. A popular way to solve this problem is to use a parallel file system, which uses the local network speed to avoid the performance bottleneck found in an isolated disk. In this study, we analyze some parallel and distributed file systems, detailing the most interesting and important ones. Finally, we show the use of a parallel file system can be more efficient than the use of a usual local file system, for just one client.
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