USO DE TEORIAS NO CAMPO DE SISTEMAS DE INFORMAÇÃO: MAPEAMENTO USANDO TÉCNICAS DE MINERAÇÃO DE TEXTOS

Esta dissertação visa apresentar o mapeamento do uso das teorias de sistemas de informações, usando técnicas de recuperação de informação e metodologias de mineração de dados e textos. As teorias abordadas foram Economia de Custos de Transações (Transactions Costs Economics TCE), Visão Baseada em Recursos da Firma (Resource-Based View-RBV) e Teoria Institucional (Institutional Theory-IT), sendo escolhidas por serem teorias de grande relevância para estudos de alocação de investimentos e implementação em sistemas de informação, tendo como base de dados o conteúdo textual (em inglês) do resumo e da revisão teórica dos artigos dos periódicos Information System Research (ISR), Management Information Systems Quarterly (MISQ) e Journal of Management Information Systems (JMIS) no período de 2000 a 2008. Os resultados advindos da técnica de mineração textual aliada à mineração de dados foram comparadas com a ferramenta de busca avançada EBSCO e demonstraram uma eficiência maior na identificação de conteúdo. Os artigos fundamentados nas três teorias representaram 10% do total de artigos dos três períodicos e o período mais profícuo de publicação foi o de 2001 e 2007.(AU)

Response-based segmentation using Finite Mixture Partial Least Squares: theoretical foundations and an application to American Customer Satisfaction Index Data

When applying multivariate analysis techniques in information systems and social science disciplines, such as management information systems (MIS) and marketing, the assumption that the empirical data originate from a single homogeneous population is often unrealistic. When applying a causal modeling approach, such as partial least squares (PLS) path modeling, segmentation is a key issue in coping with the problem of heterogeneity in estimated cause-and-effect relationships. This chapter presents a new PLS path modeling approach which classifies units on the basis of the heterogeneity of the estimates in the inner model. If unobserved heterogeneity significantly affects the estimated path model relationships on the aggregate data level, the methodology will allow homogenous groups of observations to be created that exhibit distinctive path model estimates. The approach will, thus, provide differentiated analytical outcomes that permit more precise interpretations of each segment formed. An application on a large data set in an example of the American customer satisfaction index (ACSI) substantiates the methodology’s effectiveness in evaluating PLS path modeling results.

Managing projects in fast track:a case of public sector organisation in India

Completing projects faster than the normal duration is always a challenge to the management of any project, as it often demands many paradigm shifts. Opportunities of globalization, competition from private sectors and multinationals force the management of public sector organizations in the Indian petroleum sector to take various aggressive strategies to maintain their profitability. Constructing infrastructure for handling petroleum products is one of them. Moreover, these projects are required to be completed in faster duration compared to normal schedules to remain competitive, to get faster return on investment, and to give longer project life. However, using conventional tools and techniques of project management, it is impossible to handle the problem of reducing the project duration from a normal period. This study proposes the use of concurrent engineering in managing projects for radically reducing project duration. The phases of the project are accomplished concurrently/simultaneously instead of in a series. The complexities that arise in managing projects are tackled through restructuring project organization, improving management commitment, strengthening project-planning activities, ensuring project quality, managing project risk objectively and integrating project activities through management information systems. These would not only ensure completion of projects in fast track, but also improve project effectiveness in terms of quality, cost effectiveness, team building, etc. and in turn overall productivity of the project organization would improve.

Coordinating expertise across knowledge boundaries in offshore-outsourcing projects:the role of codification

The coordination of effort within and among different expert groups is a central feature of contemporary organizations. Within the existing literature, however, a dichotomy has emerged in our understanding of the role played by codification in coordinating expert groups. One strand of literature emphasizes codification as a process that supports coordination by enabling the storage and ready transfer of knowledge. In contrast, another strand highlights the persistent differences between expert groups that create boundaries to the transfer of knowledge, seeing coordination as dependent on the quality of the reciprocal interactions between groups and individuals. Our research helps to resolve such contested understandings of the coordinative role played by codification. By focusing on the offshore-outsourcing of knowledge-intensive services, we examine the role played by codification when expertise was coordinated between client staff and onsite and offshore vendor personnel in a large-scale outsourcing contract between TATA Consultancy Services (TCS) and ABN AMRO bank. A number of theoretical contributions flow from our analysis of the case study, helping to move our understanding beyond the dichotomized views of codification outlined above. First, our study adds to previous work where codification has been seen as a static concept by demonstrating the multiple, coexisting, and complementary roles that codification may play. We examine the dynamic nature of codification and show changes in the relative importance of these different roles in coordinating distributed expertise over time. Second, we reconceptualize the commonly accepted view of codification as focusing on the replication and diffusion of knowledge by developing the notion of the codification of the “knower” as complementary to the codification of knowledge. Unlike previous studies of expertise directories, codification of the knower does not involve representing expertise in terms of occupational skills or competences but enables the reciprocal interrelating of expertise required by more unstructured tasks.

Marketing Hospitality Web Sites

The web has emerged as a potent business channel. Yet many hospitality websites are irrelevant in a new and cluttered technical world. Knowing how to promote and advertise a website and capitalizing on available resources are the keys to success. The authors lay out a marketing plan for increasing hospitality website traffic.

Evaluating Applicability of E-Service Quality in Online Hotel Bookings

This study evaluates applicability of E-service quality measurements in the context of online hotel bookings. Data was collected from an online survey of undergraduate college students at two universities in the United States. The Transaction Process-based Framework (eTransQual) conceptualized by Bauer et al. (2006) was adapted, and the dimensionality of e-service quality was identified. The study identified process/reliability as the most important factor influencing overall quality of booking websites.

Net Bet Debt

The prospective high returns from gaming operations have introduced the Internet as a new competitor to the hotel and travel industry. With the dawn of the new millennium, am epidemic of gamblers has infected the virtual world and raised leagal problems yet to be solved.

Importance-Performance Analysis of Guest Entertainment Technology Amenities in the Lodging Industry

An assessment of how hotel guests view in-room entertainment-technology amenities was conducted to compare the importance of these technologies to how they performed. In-room entertainment technology continues to evolve in the hotel industry. However, given the multitude of entertainment products available in the marketplace today, hoteliers have little understanding of guests’ expectations and of which in-room entertainment-technology amenities will drive guest satisfaction and increase loyalty to the hotel brand. Given that technology is integral to a hotel stay, this study seeks to evaluate the importance and performance of in-room entertainment-technology amenities. Findings indicate that free-to-guest television (FTG TV) and high-speed Internet access were the two most important inroom entertainment-technology amenities when it comes to the selection of a hotel for both leisure and business travelers. The Importance/Satisfaction Matrix presented in the current study showed that many of the in-room entertainment-technology amenities are currently a low priority for guests. Keywords: importance-performance analysis, hotel, in-room entertainment technologies

Untangling a Web of Lies: Exploring Automated Detection of Deception in Computer-Mediated Communication

Safeguarding organizations against opportunism and severe deception in computer-mediated communication (CMC) presents a major challenge to CIOs and IT managers. New insights into linguistic cues of deception derive from the speech acts innate to CMC. Applying automated text analysis to archival email exchanges in a CMC system as part of a reward program, we assess the ability of word use (micro-level), message development (macro-level), and intertextual exchange cues (meta-level) to detect severe deception by business partners. We empirically assess the predictive ability of our framework using an ordinal multilevel regression model. Results indicate that deceivers minimize the use of referencing and self-deprecation but include more superfluous descriptions and flattery. Deceitful channel partners also over structure their arguments and rapidly mimic the linguistic style of the account manager across dyadic e-mail exchanges. Thanks to its diagnostic value, the proposed framework can support firms’ decision-making and guide compliance monitoring system development.

Utilizing ICT to prevent loneliness and social isolation of the elderly. A literature review

Ageing of the population is a worldwide phenomenon. Numerous ICT-based solutions have been developed for elderly care but mainly connected to the physiological and nursing aspects in services for the elderly. Social work is a profession that should pay attention to the comprehensive wellbeing and social needs of the elderly. Many people experience loneliness and depression in their old age, either as a result of living alone or due to a lack of close family ties and reduced connections with their culture of origin, which results in an inability to participate actively in community activities (Singh & Misra, 2009). Participation in society would enhance the quality of life. With the development of information technology, the use of technology in social work practice has risen dramatically. The aim of this literature review is to map out the state of the art of knowledge about the usage of ICT in elderly care and to figure out research-based knowledge about the usability of ICT for the prevention of loneliness and social isolation of elderly people. The data for the current research comes from the core collection of the Web of Science and the data searching was performed using Boolean? The searching resulted in 216 published English articles. After going through the topics and abstracts, 34 articles were selected for the data analysis that is based on a multi approach framework. The analysis of the research approach is categorized according to some aspects of using ICT by older adults from the adoption of ICT to the impact of usage, and the social services for them. This literature review focused on the function of communication by excluding the applications that mainly relate to physical nursing. The results show that the so-called ‘digital divide’ still exists, but the older adults have the willingness to learn and utilise ICT in daily life, especially for communication. The data shows that the usage of ICT can prevent the loneliness and social isolation of older adults, and they are eager for technical support in using ICT. The results of data analysis on theoretical frames and concepts show that this research field applies different theoretical frames from various scientific fields, while a social work approach is lacking. However, a synergic frame of applied theories will be suggested from the perspective of social work.

Estudo empírico de antecedentes do sucesso de sistemas de informação: análise de um sistema de apoio à decisão em uma universidade pública

Universities are institutions that generate and manipulate large amounts of data as a result of the multiple functions they perform, of the amount of involved professionals and students they attend. Information gathered from these data is used, for example, for operational activities and to support decision-making by managers. To assist managers in accomplishing their tasks, the Information Systems (IS) are presented as tools that offer features aiming to improve the performance of its users, assist with routine tasks and provide support to decision-making. The purpose of this research is to evaluate the influence of the users features and of the task in the success of IS. The study is of a descriptive-exploratory nature, therefore, the constructs used to define the conceptual model of the research are known and previously validated. However, individual features of users and of the task are IS success antecedents. In order to test the influence of these antecedents, it was developed a decision support IS that uses the Multicriteria Decision Aid Constructivist (MCDA-C) methodology with the participation and involvement of users. The sample consisted of managers and former managers of UTFPR Campus Pato Branco who work or have worked in teaching activities, research, extension and management. For data collection an experiment was conducted in the computer lab of the Campus Pato Branco in order to verify the hypotheses of the research. The experiment consisted of performing a distribution task of teaching positions between the academic departments using the IS developed. The task involved decision-making related to management activities. The data that fed the system used were real, from the Campus itself. A questionnaire was answered by the participants of the experiment in order to obtain data to verify the research hypotheses. The results obtained from the data analysis partially confirmed the influence of the individual features in IS success and fully confirmed the influence of task features. The data collected failed to support significant ratio between the individual features and the individual impact. For many of the participants the first contact with the IS was during the experiment, which indicates the lack of experience with the system. Regarding the success of IS, the data revealed that there is no significance in the relationship between Information Quality (IQ) and Individual Impact (II). It is noteworthy that the IS used in the experiment is to support decision-making and the information provided by this system are strictly quantitative, which may have caused some conflict in the analysis of the criteria involved in the decision-making process. This is because the criteria of teaching, research, extension and management are interconnected such that one reflects on another. Thus, the opinion of the managers does not depend exclusively on quantitative data, but also of knowledge and value judgment that each manager has about the problem to be solved.

Modelo de gestão do conhecimento para a unidade organizacional de saúde

Nos últimos anos têm surgido vários debates e estudos sobre a importância do conhecimento. As organizações consideram a Gestão do Conhecimento (GC) uma vantagem competitiva, capaz de gerar riqueza e poder. Para tal necessitam de desenvolver mecanismos e de ter pessoas com capacidade de criar, compartilhar e disseminar conhecimentos na organização. As Tecnologias de Informação e os Sistemas de Informação são uma ferramenta de grande impacto na GC, pois assumem um papel importante no sucesso e na renovação dos conhecimentos. A partir do Modelo de GC desenvolvido por Nonaka e Takeuchi, o Modelo Metavisão, e as técnicas de Business lntelligence, elaborou-se um Modelo de Gestão do conhecimento para a Unidade de Saúde. Com este modelo pretende-se obter beneficies, que passam pelo desenvolvimento de mecanismos de comunicação interna, formação e melhorias no processo de tomada de decisão. ABSTRACT; During the last years, debates and studies have arisen in relation to the importance of knowledge. The organizations consider Knowledge Management a competitive advantage, capable of generating wealth and power. Therefore, new mechanisms have to be developed in the organizations and employ people with capacity to create, share and disseminate knowledge. The information and Communication Technology is an important tool and has a great impact on Knowledge Management because it assumes an important role in the success and the renovation of knowledge. The Model of Knowledge Management developed by Nonaka and Takeuchi, the "Metavision" Model and the techniques of Business intelligence were the starting point to elaborate a Model of Knowledge Management for a Health Unit. With this model we aim to obtain benefits, such as development of mechanisms of internal communication, training plans and improvement during the process of decision making.

A importância dos módulos logísticos do SIG na reorganização logistica e financeira do Exército

No âmbito do plano curricular do Mestrado em Administração Militar (AdMil) procedemos á realização do presente Trabalho de Investigação Aplicada (TIA) intitulado de “A importância dos módulos logísticos do SIG na reorganização logística e financeira do Exército”. É de referir que este assunto é de total interesse porque se enquadra no objetivo estratégico do Exército (OEPB10) que visa incrementar a gestão de recursos apoiada em sistemas de informação publicados na Diretiva de Planeamento do Exército para o biénio 2015 e 2016. O objetivo geral desta investigação é explicar se as funcionalidades do módulo MM do SIG respondem às necessidades do Exército. Pretendemos também identificar se o processo de compras logístico é utilizado em pleno, determinar se é possível fazer uma análise das compras já efetuadas e em curso, determinar se o Exército em SIG consegue gerir as suas existências em quantidade e valor, identificar se existe gestão de necessidades de reabastecimento das U/E/O em SIG e expor as vantagens e inconvenientes da sua utilização, descrever as vantagens da migração dos dados para a aplicação SIG de outras aplicações usadas para a gestão de stocks. O módulo MM do SIG integra a administração de materiais, planeamento, controlo dos materiais, compras, recebimentos de mercadorias, administração de stocks e verificação de faturas. A presente investigação trata-se de um estudo de caso, para tal recorremos ao método hipotético-dedutivo e aplicámos um estudo exploratório/descritivo. Nesta investigação procedeu-se à recolha de informação através de inquéritos por entrevista e por questionário, tendo sido selecionado consequentemente um método misto (qualitativo e quantitativo). Após a análise e discussão dos resultados concluímos que as funcionalidades do módulo MM do SIG implementado no Exército não respondem na totalidade às necessidades do Exército, em determinadas classes de abastecimento no âmbito das existências. Assim é de salientar que do antecedente foram implementadas as ferramentas MM compras centrais e locais, e desde o ano de 2014, têm sido implementados em sistema a gestão dos combustíveis e neste momento o fardamento. Acrescentamos que o módulo MM está integrado e como tal há necessidade de resolver vários problemas considerados externos, nomeadamente a agilização do processo da catalogação, a descentralização das compras que leva a que as U/E/O recorram maioritariamente à utilização de NNA genéricos, não possibilitando a gestão dos materiais em sistema SIG, o que resulta posteriormente numa apresentação incorreta da conta 3 das existências no balanço.