Scielo RSS <![CDATA[JISTEM - Journal of Information Systems and Technology Management]]> http://www.scielo.br/rss.php?pid=1807-177520080002&lang=pt vol. 5 num. 2 lang. pt <![CDATA[SciELO Logo]]> http://www.scielo.br/img/en/fbpelogp.gif http://www.scielo.br <![CDATA[<B>Editorial</B>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200001&lng=pt&nrm=iso&tlng=pt <![CDATA[<b>Integrando motores de indexação de dados para a construção de sistemas de recuperação de informação em ambientes heterogêneos</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200002&lng=pt&nrm=iso&tlng=pt As diversas propostas existentes para a recuperação de informação apresentam limitações referentes ao ambiente em que atuam, restringindo a recuperação de informações a fontes de dados ou a áreas do conhecimento especificas. Neste contexto, este artigo propõe um modelo e um arcabouço para a integração de motores de indexação a fim de possibilitar o desenvolvimento de Sistemas de Recuperação de Informação (SRIs) capacitados a recuperar informações em ambientes de fontes de dados heterogêneas, apresentando-se assim, como uma abordagem para atender a demanda de acesso às informações em ambientes corporativos.<hr/>The different proposals for information recovery put forward a set of limitations about the environments which they recover information from, they usually restrict the information recovery to a very specific data source or knowledge area. In this context, this paper proposes a model and a framework in order to integrate different index engines to enable the development of Information Retrieval Systems capable of retrieving information in heterogeneous data sources, and, therefore, showing up as a solution to fulfill the demand to access information in corporate environments. <![CDATA[<b>Semantic web in higher education</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200003&lng=pt&nrm=iso&tlng=pt Las ideas expresadas en el presente proyecto reflejan en gran medida, la necesidad de satisfacción de los requerimientos de la información científica y técnica, y así generar nuevas perspectivas en un modelo que permita vincular los Directorios de Publicaciones Científicas, las Bibliotecas Digitales Universitarias y las Comunidades Científicas. con los principales actores-usuarios de dichos requerimientos, como son los investigadores, los docentes y los alumnos partícipes en los modelos de eseñanza-aprendizaje, conjuntamente con la comunidad productora de bienes y servicios.<hr/>The ideas expressed in this project largely reflect the need for the satisfaction of the requirements of scientific and technical information, and generate new perspectives on a model that allows linking Directory of Scientific Publications, the Digital Libraries University and Scientific Communities with key players-users of these requirements, such as researchers, teachers and students participate in the model learning, in conjunction with the community producer of goods and services. <![CDATA[<b>Avaliação experimental de redes mesh com os classmate pcs da Intel</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200004&lng=pt&nrm=iso&tlng=pt Este artigo apresenta os resultados da avaliação de uma rede mesh empregando o padrão 802.11s e laptops de baixo custo para inclusão digital fabricados pela Intel - os Classmate PCs. Os experimentos de avaliação contemplaram tanto testes em ambientes internos como externos, nos quais foram realizados testes de cobertura da rede e comunicação multihop. Os experimentos realizados mostram uma taxa máxima obtida na transferência de pacotes de 14Mbps e 12Mbps para TCP e UDP, respectivamente, comprovando a viabilidade da solução proposta para o processo de inclusão digital nas escolas públicas.<hr/>This paper shows performance evaluation results of a wireless mesh network employing an 802.11s standard and low cost Intel Classmate PCs. The experiments consist of throughput and coverage range determination, in indoor and outdoor scenarios, in which net and communication multihop coverage tests were done. The results show maximum throughput of 14 Mbps for TCP and 12 Mbps for UDP respectively, proving the proposed solution's viability for the digital inclusion process in public schools. <![CDATA[<b>Um estudo da produção acadêmica nacional sobre gestão do conhecimento através da teoria do conhecimento de Habermas</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200005&lng=pt&nrm=iso&tlng=pt The purpose of this study is to challenge the academic production on Knowledge Management (KM) recently published by the Brazilian academy. A total of 6,096 published articles in the Proceedings of the National Meeting of Postgraduate Management Programs, named ENANPAD, from 1997 to 2007, were compiled. Habermas' knowledge theory has great relevance for the critical debate on the area of knowledge management (KM) in three types of knowledge: technical, practical and emancipatory. Through the documental research it was possible to identify the absolute predominance of the technical interest as a characteristic of the instrumental reason directed to constant prediction and control in the area of KM. Approximately 75% of these empirical studies did not address the question of power relations and knowledge nor did it address human consciousness emancipation towards a critical reflection of oppressive practices or political and ideological social approaches. <![CDATA[<b>Main characteristics of companies using service oriented architecture (soa) and of their operation context</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200006&lng=pt&nrm=iso&tlng=pt The aim of this article is to establish the main characteristics of the organizations that have successfully implemented information systems based on Service Oriented Architecture (SOA). Their environmental circumstances have also been studied. To achieve this objective, a SOA bibliographic review has been carried out, encompassing an analysis of 25 real cases in which different SOA applications were successfully implemented. All these cases were published between 2.001 and 2.007. The conclusions of this article can be briefly summarized as follows: SOA is well suited for organizations that rely on important legacy systems, whose performance is hindered by the lack of integration and flexibility of their computer architectures. These organizations therefore need to improve such architectures rather than replace them by new systems; SOA is being used by organizations that need to integrate their systems with those of their supply chain partners; SOA solutions provide support for the use of Web technologies. <![CDATA[<b>Fator social versus tecnologia utilitária</b>: <b>marketing social versus mercado utilitário</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200007&lng=pt&nrm=iso&tlng=pt A expansão e a convergência tecnológica de serviços vêm ampliando e modificando a utilização de produtos e serviços no setor telecomunicações, criando um novo mercado e ampliando seu público alvo pelas diversas características de utilização. O artigo desenvolvido apresenta uma pesquisa qualitativa, pelo estudo netnográfico (uma nova estrutura de avaliação qualitativa, onde discussões temáticas são retiradas de websites de confiança para serem organizados dado às palavras chaves utilizadas, passando posteriormente por um processo de codificação e interpretação sobre os fatores pesquisados) baseado no consumo e comportamento do uso do iPhone, aparelho móvel celular com diversas integrações de produtos e convergências de serviços. Nesta pesquisa, foram avaliados os fatores utilitários e sociais / hedônicos, apresentando que o mercado do setor possui uma nova gama de serviços, atraindo novos grupos de usuários ao seu contexto, deixando assim cada vez mais diversificado o tipo de marketing utilizado no setor. O fator social (imagem pessoal) é apontado como fator primário na decisão de escolha e uso do dispositivo, onde a apresentação no mercado e marketing para estes produtos estimulam cada vez mais a utilidade como um valor social. Identificando o dispositivo celular como um produto utilitário dado o tipo de serviço e utilização a que este se propõe, acredita-se que este mercado utilitário muda seu sentido quando certa quantidade de integrações são hedônicas amplificando a diversificação de uso, os valores sociais e hedônicos. Os autores definem este uso de um produto tecnológico com diversas integrações hedônicas como um comportamento utilitário social, onde a utilidade do produto passa a ser social (apresentação pessoal ou diversão individual).<hr/>Technical service and convergence have been expanding and modifying the use of products and services in the telecommunications sector, generating new markets and expanding their demographic targets through different characteristics of usage. The article developed here presents qualitative research through the netnographic study (e.g. a new structure of qualitative evaluation is used, in which thematic discussions are gathered from websites based on key words used, afterwards passing through a codification and interpretation process in reference to researched factors) based on consumers and their behaviors concerning the iPhone which is a mobile device from Apple with many integrated features and convergence in services. This study evaluated the utilitarian and social / hedonistic factors, finding that the sector market has a new series of services, attracting new groups of users to its context, and resulting in the type of marketing becoming more and more diversified. The social factor (personal image) is highlighted as a primary factor in the selection and device usage, where the actual market and product marketing are increasingly stimulating utility as a social value. Identifying the mobile phone as a utilitarian product based on kind of service and proposed system usage, leads one to believe that the utilitarian market changes its meaning when a certain quantity of integrations are highly hedonistic in their diverse uses, as well as the hedonistic and social values. The authors define the usage of a technological product with many integrated hedonisms as useful social behavior, where the product usefulness becomes social (personal presentation or individual enjoyment). <![CDATA[<b>Gestão sociotécnica do teste de software em projetos de sistemas de informação</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200008&lng=pt&nrm=iso&tlng=pt Na indústria brasileira de desenvolvimento de software para sistemas de informações, observa-se sensibilidade das empresas quanto à necessária melhoria contínua na qualidade do processo produtivo. Uma das formas de tratar a qualidade do desenvolvimento de software - na expectativa de alinhar os processos de negócio do cliente às rotinas computacionalmente programadas no sistema de informações - dá-se por meio do teste de software. O teste de software busca institucionalizar práticas de gestão de projetos e desenvolvimento de produtos de software, com o objetivo de localizar os problemas - e não garantir a sua inexistência. A partir de uma perspectiva sociotécnica e dos modelos teóricos SET (gerencial) e ST-TS (processual) desenvolvidos nesta pesquisa para um melhor entendimento e orientação das atividades de teste, entrevistas em profundidade com dez especialistas em qualidade e teste de software permitiram a identificação e validação de categorias analíticas que mediam a relação entre fatores desses dois modelos, disto derivando-se o modelo organizacional VAST para auxiliar gestores, desenvolvedores e clientes em projetos de software para sistemas de informações empresariais.<hr/>Brazilian companies that develop software for information systems are aware of the pressing need for continuous improvement in process quality. Towards aligning business processes with software routines implemented in an information system, one should address the institutional practices of software testing. From a socio-technical perspective and with the help of two theoretical models developed in this study to outline and guide the testing activities from a managerial and process-based perspective, in-depth interviews with ten experts in software quality and software testing enabled us to identify and validate analytical categories that mediate the relation between those two models. The result was the development of an organizational structure to support managers, developers and customers in software projects for enterprise information systems. <![CDATA[<b>FMEA and PMBOK applied to project risk management</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200009&lng=pt&nrm=iso&tlng=pt This paper presents a risk management tool based on two well-known sets of concepts: FMEA (Failure Mode and Effect Analysis) and PMBOK (Project Management Body of Knowledge). After presenting an adherence analysis between the suggested model and PMBOK, we apply the proposed instrument in a real case study: an ERP implementation at the largest Brazilian mail service and logistics organization. The main results show that the proposed model was largely successful because it identified and classified risks. Furthermore, the model helped to document the strategies and action plans needed to respond to these risks. <![CDATA[<b>Digital Pakistan</b>: <b>opportunities & challenges</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200010&lng=pt&nrm=iso&tlng=pt IT has revolutionized the social and organizational life around the globe. Given the newness of IT as a technology, there is a lot of potential that needs to be explored. It is however, argued that as IT can revolutionize the economic development, by the same coin, although its mismanagement in adoption process can end up in problems or even straight failure of the technology at the business-end. This study was conducted with reference to opportunities and challenges in the IT adoption process in Pakistan. The aim of the study was to point out the barriers that are impeding the country's computerization process in order to provide facts to the policy makers for smooth computerization. The primary data collected through structured questionnaires was analyzed and tested through correlation, regressions analysis and t-test. Out of 10 hypotheses, 3 were accepted while in the rest null hypotheses were not substantiated. Based on primary and secondary data analysis this study has found that all independent bureaucratic, political, education and social and cultural variables are mutually correlated and have significant impact on shaping and reshaping of IT in Pakistan, while the Pakistan IT policy is inconsistent, administrative machinery attitude is negative and non cooperative, procedures are cumbersome and implementation is weak and ineffective, not to mention the lack of IT knowledge on the bureaucratic side. The political environment is instable and law and order is worse which is discouraging the investment. Moreover, physical and legal infrastructure is insufficient and the country is lacking good quality IT professionals. IT organization alignment is another serious issue in Pakistan. However, government incentives and growing interest from the private sector indicate positive attitude towards computerization of the country. <![CDATA[<b>Resultados do 5º CONTECSI - Congresso Internacional de Gestão da Tecnologia e Sistemas de Informação</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200011&lng=pt&nrm=iso&tlng=pt IT has revolutionized the social and organizational life around the globe. Given the newness of IT as a technology, there is a lot of potential that needs to be explored. It is however, argued that as IT can revolutionize the economic development, by the same coin, although its mismanagement in adoption process can end up in problems or even straight failure of the technology at the business-end. This study was conducted with reference to opportunities and challenges in the IT adoption process in Pakistan. The aim of the study was to point out the barriers that are impeding the country's computerization process in order to provide facts to the policy makers for smooth computerization. The primary data collected through structured questionnaires was analyzed and tested through correlation, regressions analysis and t-test. Out of 10 hypotheses, 3 were accepted while in the rest null hypotheses were not substantiated. Based on primary and secondary data analysis this study has found that all independent bureaucratic, political, education and social and cultural variables are mutually correlated and have significant impact on shaping and reshaping of IT in Pakistan, while the Pakistan IT policy is inconsistent, administrative machinery attitude is negative and non cooperative, procedures are cumbersome and implementation is weak and ineffective, not to mention the lack of IT knowledge on the bureaucratic side. The political environment is instable and law and order is worse which is discouraging the investment. Moreover, physical and legal infrastructure is insufficient and the country is lacking good quality IT professionals. IT organization alignment is another serious issue in Pakistan. However, government incentives and growing interest from the private sector indicate positive attitude towards computerization of the country. <![CDATA[<b>Editorial</b>]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-17752008000200012&lng=pt&nrm=iso&tlng=pt IT has revolutionized the social and organizational life around the globe. Given the newness of IT as a technology, there is a lot of potential that needs to be explored. It is however, argued that as IT can revolutionize the economic development, by the same coin, although its mismanagement in adoption process can end up in problems or even straight failure of the technology at the business-end. This study was conducted with reference to opportunities and challenges in the IT adoption process in Pakistan. The aim of the study was to point out the barriers that are impeding the country's computerization process in order to provide facts to the policy makers for smooth computerization. The primary data collected through structured questionnaires was analyzed and tested through correlation, regressions analysis and t-test. Out of 10 hypotheses, 3 were accepted while in the rest null hypotheses were not substantiated. Based on primary and secondary data analysis this study has found that all independent bureaucratic, political, education and social and cultural variables are mutually correlated and have significant impact on shaping and reshaping of IT in Pakistan, while the Pakistan IT policy is inconsistent, administrative machinery attitude is negative and non cooperative, procedures are cumbersome and implementation is weak and ineffective, not to mention the lack of IT knowledge on the bureaucratic side. The political environment is instable and law and order is worse which is discouraging the investment. Moreover, physical and legal infrastructure is insufficient and the country is lacking good quality IT professionals. IT organization alignment is another serious issue in Pakistan. However, government incentives and growing interest from the private sector indicate positive attitude towards computerization of the country.