Appealing features of cloud services such as elasticity, scalability, universal access, low entry cost, and flexible billing motivate consumers to migrate their core businesses into the cloud. However, there are challenges about security, privacy, and compliance. Building compliant systems is difficult because of the complex nature of regulations and cloud systems. In addition, the lack of complete, precise, vendor neutral, and platform independent software architectures makes compliance even harder. We have attempted to make regulations clearer and more precise with patterns and reference architectures (RAs). We have analyzed regulation policies, identified overlaps, and abstracted them as patterns to build compliant RAs. RAs should be complete, precise, abstract, vendor neutral, platform independent, and with no implementation details; however, their levels of detail and abstraction are still debatable and there is no commonly accepted definition about what an RA should contain. Existing approaches to build RAs lack structured templates and systematic procedures. In addition, most approaches do not take full advantage of patterns and best practices that promote architectural quality. We have developed a five-step approach by analyzing features from available approaches but refined and combined them in a new way. We consider an RA as a big compound pattern that can improve the quality of the concrete architectures derived from it and from which we can derive more specialized RAs for cloud systems. We have built an RA for HIPAA, a compliance RA (CRA), and a specialized compliance and security RA (CSRA) for cloud systems. These RAs take advantage of patterns and best practices that promote software quality. We evaluated the architecture by creating profiles. The proposed approach can be used to build RAs from scratch or to build new RAs by abstracting real RAs for a given context. We have also described an RA itself as a compound pattern by using a modified POSA template. Finally, we have built a concrete deployment and availability architecture derived from CSRA that can be used as a foundation to build compliance systems in the cloud. / Includes bibliography. / Dissertation (Ph.D.)--Florida Atlantic University, 2015. / FAU Electronic Theses and Dissertations Collection

Submitted by Filipe dos Santos (fsantos@pucsp.br) on 2018-04-06T12:55:35Z No. of bitstreams: 1 Desirèe Luíse Lopes Conceição.pdf: 2748185 bytes, checksum: c467bc5ad86bb59233d0a5e34244958c (MD5) / Made available in DSpace on 2018-04-06T12:55:35Z (GMT). No. of bitstreams: 1 Desirèe Luíse Lopes Conceição.pdf: 2748185 bytes, checksum: c467bc5ad86bb59233d0a5e34244958c (MD5) Previous issue date: 2018-02-21 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This dissertation aims to analyze the political information produced and disseminated by the digital platform “Truco!”, which is Agência Pública’s fact-checking project developed for the 2014 election in order to identify and ascertain the political debate taking place. The methodology adopted is based on the network policy concept of the author Manuel Castells, and consists of an elaboration for primary data collection, defined from the interactions and linked to the initial proposal of this research. The results recognize qualitative investigative journalism work with political participation activities, and it’s possible to relate them to the idea that the internet has elements to contribute to citizen education / A dissertação tem por objetivo analisar a produção e divulgação de informação política na plataforma digital “Truco!”, um projeto de fact-checking da Agência Pública desenvolvido para as eleições de 2014, além de identificar e averiguar o debate político ocorrido por meio da iniciativa. A metodologia adotada é baseada no conceito de política em rede do autor Manuel Castells. A técnica metodológica consistiu na elaboração de indicadores para a coleta de dados primários, definidos a partir de uma análise piloto e da identificação de padrões de interação relacionados à proposta inicial da pesquisa. Os resultados permitem identificar um trabalho de jornalismo investigativo qualitativo, além da presença de atividades de colaboração e participação política, o que aponta à concepção de que a internet contém elementos para contribuir com a formação para a cidadania

The last two decades have seen an evolution of Information and Communication Technology (ICT) capabilities in the public sector which facilitates the adoption of several IT innovations. Electronic government is one of these strategic innovations that many government agencies have considered adopting to deliver government information and services and support the modernisation of government’s administrative tasks. This research investigates an e-government adoption process as represented by the Extensible Business Reporting Language (XBRL) adoption process. XBRL constitutes one of the key components of the electronic regulatory reporting process in HM Revenue and Customs (HMRC) and Companies House (CH). A comprehensive conceptual framework is developed to examine XBRL adoption process and the influential technological, organisational, environmental factors and e-government challenges that affect this process. The contribution of this comprehensive framework is that it develops various relationships among these factors, challenges and stages of the adoption process which have not been identified in the IT adoption or e-government literature. The framework for e-government adoption in the public sector is useful in multiple ways. The major benefit is to contribute to understanding the adoption process, identify the technological infrastructure, and emphasise the importance of the organisational readiness and impact of the environment on the adoption process. The framework can also help government decision makers to visualise a suitable strategic action plan for the future of electronic government by identifying the key issues and potential challenges associated with adopting e-government projects.

Resumo: No âmbito da gestão de recursos informacionais os modelos e métodos de organização e recuperação de informações sempre estiveram condicionados às tecnologias utilizadas, de modo que com desenvolvimento e intensificação da utilização das tecnologias digitais uma nova gama de possibilidades vem sendo incorporada aos processos de produção, armazenamento, representação e recuperação de informações, atingindo um estágio em que os modelos clássicos de organização e recuperação de informações precisam ser (re)pensados sob diferentes perspectivas, pois os mesmos não parecem ser capazes de solucionar os problemas identificados no ambiente Web, evidenciando a necessidade de desenvolvimento de novas tecnologias que permitam otimizar a recuperação de informações em ambientes digitais. Nesse sentido, os estudos relacionados ao projeto Web Semântica vêm destacando-se como uma nova perspectiva no desenvolvimento de tecnologias que possibilitem um aumento na qualidade e relevância das informações recuperadas, a partir do desenvolvimento de instrumentos que permitam descrever formalmente, em um formato que possa ser processado por máquinas, os aspectos semânticos inerentes aos recursos informacionais, contribuindo para a identificação e contextualização das informações disponíveis no ambiente Web. Deste modo, a proposição deste trabalho é a realização de um estudo teórico e metodológico de caráter interdisciplinar acerca do projeto Web Semântica, buscando favorecer a "desmistificação" dos conceitos e tecnologias subjacentes e avaliar em que medida a área de Ciência da Informação pode contribuir para sua concretização, ressaltando os possíveis reflexos destas novas abordagens tecnológicas em seu corpus teórico. Assim, apresenta-se um levantamento bibliográfico acerca do desenvolvimento da Internet... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: In the scope of the information resource management, the models and methods of organization and retrieval of information were always conditioned to the used technologies, so that with the development and intensification of digital technology uses, a new scale of possibilities has been incorporated to the production process, storage, representation and retrieval of information, reaching a stage where the classic models of organization and retrieval of information need to be (re)thought under different perspectives, because they don’t seem to be able to solve the problems identified in the Web environment, becoming evident the need of development of new technologies that allow to optimize the retrieval of information in digital environment. In this way, the studies related to the Semantic Web project have been detaching as a new perspective in the development of technologies that enable an increase in the quality and relevance of the recovered information through the development of instruments that allow describing them formally, in a format that can be processed by machines. The semantic aspects that are inherent to the information resources contribute to the identification and contextualization of the available information in the Web environment. In this way, the proposition of this research is the accomplishment of a theoretical and methodological study of interdisciplinary characteristic about the Semantic Web project, aiming to identify its theoretical basis, favoring the demystification of the concepts and subjacent technologies, and evaluating in what stage the Information Science area can contribute to its concretization, becoming evident the possible reflexes of these new technological approaches in its theoretical corpus. So a bibliographic review about the development of the Internet and the main concepts and technologies inherent to the Web Semantic... (Complete abstract, click electronic address below) / Orientador: Silvana Aparecida Borsetti Gregório Vidotti / Coorientador: Mariângela Spotti Lopes Fujita / Banca: Marcos Luiz Mucheroni / Banca: Plácida Leopoldina Ventura Amorim da Costa Santos / Mestre

Thesis (MTech (Business Information Systems))--Cape Peninsula University of Technology, 2016. / The aim of this research study is to explore the management of electronic resources used in libraries. Three tertiary institutions were used as case studies. The unit of analysis was the three libraries, with library employees (14) working and managing electronic resources being the unit of observation. Non-random, purposive sampling techniques were used. The finding of this study suggests that the participants do not use the Aleph integrated library system (ILS) optimally to manage electronic resources. Library employees do not keep up with current and new emerging technology trends in the library and academic environment. There is a lack of training, as well as understanding, of business processes and workflows. This is emphasised by a lack of knowledge of library system environments and, finally, the high cost of implementing the library systems. Electronic resource management (ERM) systems emerged in the early 2000s, and it became clear that traditional integrated library systems did not have sufficient capacity to provide efficient processing for meeting the changing needs and challenges of libraries at tertiary institutions. Libraries find it challenging to manage the wide range of licensed electronic resources, collaborating, cooperating and sharing resources with different libraries. The increasing number of electronic resource demands from users for remote or off campus access makes it difficult for libraries to manage electronic resources. As a result of this inability to manage the electronic resources, libraries are not effectively and efficiently using appropriate electronic resource systems to meet their business requirements.

La tesis presenta un modelo o sistema para el análisis y la evaluación de las hemerotecas de la prensa digital, que se aplica a una muestra de diarios españoles entre 2007 y 2010 y se enmarca en una propuesta de clasificación de fuentes de información sobre prensa digital. La clasificación de las principales fuentes de información sobre prensa digital sigue como criterio fundamental para establecer la tipología de productos la función principal que realizan para el usuario, lo que lleva a establecer cuatro grandes ámbitos: acceso a cabeceras de prensa, búsqueda de información, seguimiento de información y agregación de contenidos. De cada una de estas clases, se describen y analizan distintas subtipologías: directorios, hemerotecas históricas, hemerotecas digitales de medios, bases de datos de prensa, seguimiento de prensa, seguimiento online, seguimiento en redes sociales, agregadores manuales, agregadores automatizados y agregadores sociales. Se muestran para cada tipología ejemplos significativos de las áreas lingüísticas inglesa y española. El sistema de análisis de hemerotecas digitales parte de una amplia revisión bibliográfica de trabajos sobre evaluación de recursos web y bases de datos web, y de trabajos sobre análisis y evaluación de hemerotecas de diarios digitales. Es un procedimiento evaluativo de tipo heurístico basado en 27 indicadores articulados en cuatro grandes secciones: aspectos generales, contenidos, sistema de consulta y presentación de resultados. Se expone para cada indicador: definición, explicación y uso de la puntuación. Los indicadores son: A.1. Denominación A.2. Ubicación del acceso a la hemeroteca A.3. Información sobre la hemeroteca A.4. Coste A.5. Productos documentales B.1. Colecciones disponibles B.2. Formatos disponibles B.3. Cobertura temporal C.1. Tipos de consulta por interrogación (palabras clave) C.2. Lenguaje de consulta C.3. Visualización de los índices C.4. Ajuste de relevancia C.5. Acotación temporal C.6. Acotación en colecciones C.7. Acotación en formatos C.8. Acotación por campos del registro C.9. Reutilización de búsquedas C.10. Consulta de tesauros u otros vocabularios controlados C.11. Acceso por navegación cronológica (browsing) C.12. Ayudas D.1. Gestión de las listas de resultados D.2. Campos visualizados del registro del documento D.3. Agrupación de resultados por categorías D.4. Identificación de los términos de búsqueda en el documento D.5. Formatos de visualización de un mismo documento. D.6. Gestión de los documentos recuperados D.7. Presentación de documentos relacionados Con este modelo, se analizan las hemerotecas digitales de los diarios españoles de mayor audiencia y difusión. Es un estudio longitudinal efectuado entre los años 2007 y 2010. Se presentan con detalle los resultados del análisis realizado en 2010, y se relacionan con los obtenidos anteriormente en 2007. Se señalan los aspectos mejores y peores de las hemerotecas de prensa digital, se establece un ranking de diarios en el que ocupan las primeras posiciones El mundo, Abc, El país y La vanguardia, y se destacan finalmente cinco grandes tendencias observadas: -ampliación del fondo temporal en línea; -hemerotecas gratuitas versus hemerotecas de pago; -simplificación (y empobrecimiento) de la búsqueda; -filtros en la presentación de resultados; -productos documentales en la sección Hemeroteca. / This study presents a system for the analysis and evaluation of digital press archives, analyses the digital press archives of a sample of Spanish newspapers and presents a proposal to classify and analyze the main sources that provide access to online press. The system is a kind of heuristic evaluation procedure based on 27 indicators articulated in four main sections: general features, contents, the query system, and presentation of results. For each indicator is explained: definition, explanation and use of punctuation. With this method, it analyses the digital press archives of the Spanish newspapers with the largest digital circulations between 2007 and 2010. The study points out the best and worst aspects of the digital press archives, establishing a ranking of newspapers in which El Mundo, Abc, El País and La Vanguardia occupy the top positions, and finally shows five major trends: extension of the temporary fund online, free archives versus payment archives, simplification (and depletion) of the query, filters in the presentation of results and documentary products in the archive section.

The Scientific and Technological Research Council of Turkey is the major academic research management and funding agency in Turkey. As a policy-maker, the council has undertaken very important responsibility in designing a science and technology policy of Turkey. By means of impact analysis, evaluating the ongoing research support programmes is important for designing more effective ones. However, impact of academic research are widely disseminated, journal articles being published and cited, number of academic staff involved in the supported projects, patents, and prototypes could be used as an evaluation instrument for impact analysis. In this study first time, we have figured out the social benefits (in 2008 TL fixed prices) of academic research projects, specifically physics academic research projects that were supported during 1998-2008 by T&Uuml / BiTAK. Return of funds of T&Uuml / BiTAK supported physics projects during 2005-2008 was calculated as 142%, when rate of return was taken 28%.

Fuel cells are expected to play a major role in the economy of this century and for the foreseeable future. The use of hydrogen and fuel cells can address critical challenges in all energy sectors like commercial, residential, industrial, and transportation. Fuel cells are electrochemical devices that convert energy of a chemical reaction directly into electrical energy by combining hydrogen fuel with oxygen from air. If hydrogen is used as fuel, only byproducts are heat and water. The objective of this thesis is to investigate the effect of operating temperature and relative humidity (RH) of reactant gases on proton exchange membrane (PEM) fuel cell performance by adjusting the operation temperature of the fuel cell and humidification temperature of the reactant gases. In this study, the effect of the different operating parameters on the performance of single proton exchange membrane (PEM) fuel cell have been studied experimentally using pure hydrogen on the anode side and air on the cathode side. Experiments with different fuel cell operating temperatures, different air and hydrogen humidification temperatures have been carried out. The experimental results are presented in the form of polarization curves, which show the effects of the various operating parameters on the performance of the PEM fuel cell. The polarization curves data have been fit to a zero dimensional model, and the effect of the fuel cell operation and humidification temperatures on the kinetic parameters and the cell resistance have been determined. The fuel cell has been operated with 1.2 and 2 stoichiometry ratio for hydrogen and air, respectively. Fuel cell performance was detected at different fuel cell operation temperatures changing from 60 to 80 &ordm / C, and relative humidity of the entering gases changing from 20 to 100 % for air and 50 % and 100 % for hydrogen. Tests were performed in a PEM fuel cell test station. The highest performance of 275 mA/cm2 at 0.6 V and 650 mA/cm2 at 0.4 V was obtained for 50 % RH air with a constant 100 % relative humidity of hydrogen for working at atmospheric pressure and 60 oC fuel cell temperature. However, the highest performance of 230 mA/cm2 at 0.6 V for 50 % RH of air with a constant 100 % relative humidity of hydrogen and the highest performance of 530 mA/cm2 at 0.4 V for both 70 % RH and 100% RH air with a constant 100 % relative humidity of hydrogen was obtained for working at atmospheric pressure and 70 oC fuel cell temperature. Besides, the highest performance of 200 mA/cm2 at 0.6 V and 530 mA/cm2 at 0.4 V was obtained for 100 % RH air with a constant 100 % RH of hydrogen for working at atmospheric pressure and 80 oC fuel cell temperature.

Experiences of the TUT LIS in offering support to e-learning. / Though relatively new to the family of universities and in particular, universities of technology, Tshwane University of Technology (TUT) Library and Information Services (LIS) is one of the fortunate South African higher education libraries which have a dedicated and fully-fledged IT and Systems Section. Further, TUT LIS has a Section referred to as Electronic Resource Centres which is commonly known as ERCs. The Section includes Internet Centres, popularly known as ICentres. Each of TUT’s nine learning site libraries has an ERC. Four of the learning sites have I-Centres, some in student residences. Many of the libraries have a training room attached to the ERC. Those which do not have a training facility schedule training at certain times and only thereafter avail the ERC for other use. Many of the academic departments have computer laboratories for use by their students. These are not related to ERCs or I-Centres. The LIS works in cooperation with the Directorate of Teaching and Learning with Technology (TLT) and Information, Communication and Technology (ICT) Services to support the teaching departments and students’ learning endeavours. The LIS is involved in a project to increase the University’s success and throughput rates. Other partners in this project are from HEDS (Higher Education Development and Support) Directorate comprising: Curriculum Development, Teaching and Learning with Technology, Cooperative Education and Student Development and Support. The aim of this paper is to share experiences of the TUT LIS in offering support to e-learning. The newly formed LIS embraced the model of the ERC/I-Centre as a one-stop facility that one of the merger partners, Pretoria Technikon, had established. The other partner, Technikon Northern Gauteng had partially developed an ERC to “extend access to the book/journal in electronic format”.

The dissertation research explores an approach to automatic concept-based query expansion to improve search engine performance. It uses a network-based approach for identifying the concept represented by the user's query and is founded on the idea that a collection-specific association thesaurus can be used to create a reasonable representation of all the concepts within the document collection as well as the relationships these concepts have to one another. Because the representation is generated using data from the association thesaurus, a mapping will exist between the representation of the concepts and the terms used to describe these concepts. The research applies to search engines designed for use in an individual website with content focused on a specific conceptual domain. Therefore, both the document collection and the subject content must be well-bounded, which affords the ability to make use of techniques not currently feasible for general purpose search engine used on the entire web.