A evolução das ferramentas computacionais, aliada à tecnologia da informação (TI) e ao ambiente web possibilitam a realização de projetos colaborativos, com maior integração de procedimentos, visando à comunicação, à coordenação e à cooperação da equipe multidisciplinar. O estudo de caso, realizado para o projeto de produto edificação, foi desenvolvido com a aplicação de um questionário nos escritórios de projeto em Porto Alegre e apontou para uma situação diversa da efetiva utilização destas ferramentas. O desafio do trabalho está no fato de se estabelecer os requisitos das equipes de projeto, para o desenvolvimento de um sistema de gestão do conhecimento, com a utilização da estrutura de metadados para conceber um mecanismo de busca das informações. O desenvolvimento do processo de investigação apresentou a influência da TI no setor de projetos; a adoção de um modelo de referência para gerenciamento do processo de projeto integrado de edificações (GPPIE) e a possibilidade de integração eficaz com um SGBD. / The evolution of computational tools, along with information technology (IT) and the web environment allow for collaborative projects, with a greater integration of procedures for communication, coordination and cooperation of the multidisciplinary team. The case study was conducted for the building design product, was developed with a questionnaire in the design offices in Porto Alegre, and pointed to a situation different from the effective use of these tools. The challenge of the work is to establish the requirements of the design team, developing a management system of Knowledge, using the metadata structure designing a search engine information. The development of the research showed the influence of IT in the design, the adoption of a reference model for building integrated design process management (BIDPM) and the possibility of effective combination with a DBMS.

South Africa has shown an increased interest and awareness of Open Source Software (OSS) in the past decade. One of the reasons for this was the support from the Shuttleworth Foundation for Open Source initiatives. Migrating to OSS is a difficult and time consuming activity that should not be underestimated by the migration team. Careful planning and roll-out procedures should be in place before one commence on this journey. Process reference models are used in different fields to capture the generic process flow of activities. For the OSS domain, no process reference models could be found for migration purposes. Therefore, this study has as aim the suggestion of an initial set of process reference models for an organisational OSS migration. These process reference models were identified by capturing the process models for a case study that entailed the migration of the CSIR software systems and desktops from proprietary to OSS. From this set of process models, the migration processes were identified and refined to a set of suggested process reference models for organisational OSS migrations. This set of process reference models are useful to determine the processes necessary for organisations considering migrating to OSS. The study is divided into four research questions, where the first focusses on use and value of process reference models and the second on what is already known about OSS migration processes. The third deals with key processes within an organisational open source migration (OOSM) and the last with process reference models for an OOSM. For the first research question, the use and value of process reference models and the usefulness of utilising process reference models is discussed as well as using process models as a modelling tool to identify and capture processes. For the second research question, a summary is provided of what we know about OSS migration processes and a description about what the researcher and others have learnt about OSS, OSS migrations, process reference models, the process and its structure. For the third research question, the key processes within an OOSM is discussed as well as all the processes that took place during the OSS migration project from basic administrative processes to complex processes, from the beginning of the project until its completion. Lastly, for the fourth research question, process reference models that are essential for an OOSM and possible generic migration process models bound to reoccur are identified by the researcher and validated using a focus group discussion. / M.Tech. (Information Technology)

In today's highly competitive global economy, information resources representing enterprise-wide information are essential to the survival of an organization. The development of and increase in the use of personal computers and data communication networks are supporting or, in many cases, replacing the traditional computer mainstay of corporations. The client/server model incorporates mainframe programming with desktop applications on personal computers. The aim of the research is to compile a technology model for the development of client/server software. A comprehensive overview of the individual components of the client/server system is given. The different methodologies, tools and techniques that can be used are reviewed, as well as client/server-specific design issues. The research is intended to create a road map in the form of a Technology Reference Model for Client/Server Software Development. / Computing / M. Sc. (Information Systems)

A evolução das ferramentas computacionais, aliada à tecnologia da informação (TI) e ao ambiente web possibilitam a realização de projetos colaborativos, com maior integração de procedimentos, visando à comunicação, à coordenação e à cooperação da equipe multidisciplinar. O estudo de caso, realizado para o projeto de produto edificação, foi desenvolvido com a aplicação de um questionário nos escritórios de projeto em Porto Alegre e apontou para uma situação diversa da efetiva utilização destas ferramentas. O desafio do trabalho está no fato de se estabelecer os requisitos das equipes de projeto, para o desenvolvimento de um sistema de gestão do conhecimento, com a utilização da estrutura de metadados para conceber um mecanismo de busca das informações. O desenvolvimento do processo de investigação apresentou a influência da TI no setor de projetos; a adoção de um modelo de referência para gerenciamento do processo de projeto integrado de edificações (GPPIE) e a possibilidade de integração eficaz com um SGBD. / The evolution of computational tools, along with information technology (IT) and the web environment allow for collaborative projects, with a greater integration of procedures for communication, coordination and cooperation of the multidisciplinary team. The case study was conducted for the building design product, was developed with a questionnaire in the design offices in Porto Alegre, and pointed to a situation different from the effective use of these tools. The challenge of the work is to establish the requirements of the design team, developing a management system of Knowledge, using the metadata structure designing a search engine information. The development of the research showed the influence of IT in the design, the adoption of a reference model for building integrated design process management (BIDPM) and the possibility of effective combination with a DBMS.

Made available in DSpace on 2014-12-17T14:36:28Z (GMT). No. of bitstreams: 1 EugenioPAF_DISSERT.pdf: 1419317 bytes, checksum: 6c7f01966147b6a5c73876d1d6a87da8 (MD5) Previous issue date: 2010-10-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / This dissertation was written for the making of a model to be used as reference to the construction and diagnoses of educational projects in on-line environments. The model approaches a series of characteristics, technical and humans, which if considered can increase the potential of awake the interests to the active use of these projects for the students and build conditions to the development of an active posture by the students, fundamental factor to the educational advances. Focused in the students, not in the technology in use, we propose this model as a guide, reference to be used in a critical way in relation with every educational context. This research was made from the qualitative category, trough the method of study of case, using as reference to the analysis the use of the website guanabara.info - website outside of the school context - by it users, heard through the internet, by the use of semi-opened interview, in a data taken of the primary type. We follow as theoretical references Paulo Freire?s work, considering his vision of education and the building of knowledge as a process which occurs between man, and Celest?n Freinet, in his pedagogy of humanized and critical insertion of the technologies in the school. At the end, we show the practical utilization of the model constructed using it for the diagnostics of an educational project in the on-line educational environmental moodle / Esta disserta??o foi realizada no intuito da elabora??o de um modelo a ser usado como refer?ncia na constru??o e diagn?stico de projetos educativos em ambiente on-line. O modelo aborda uma s?rie de caracter?sticas, t?cnicas e humanas, que, se trabalhadas, podem ampliar o potencial de despertar o interesse, al?m da simples obriga??o institucional, ao uso desses projetos por parte dos alunos e, por consequ?ncia, criar condi??es prop?cias ao poss?vel desenvolvimento de uma postura ativa desses, fator fundamental aos avan?os educativos. Focando-se nos alunos, e n?o na tecnologia utilizada, propomos este modelo como guia, refer?ncia a ter sua aplica??o realizada de forma cr?tica, relativizada a cada contexto educativo. Esta pesquisa foi realizada a partir da categoria qualitativa, pelo m?todo de observa??o participante, utilizando como refer?ncia ?s an?lises o uso dos sujeitos participantes do site "guanabara.info" - site educativo fora do contexto escolar - entrevistados a dist?ncia, pela internet, a partir do uso da t?cnica de entrevista semi-aberta, em uma coleta de dados do tipo prim?rios. Seguimos como referenciais te?ricos os trabalhos de Paulo Freire, considerando sua vis?o de educa??o e forma??o do conhecimento como um processo entre os homens, e de C?lestin Freinet, em sua pedagogia de inser??o humanizada e cr?tica de tecnologias na escola. Ao final, demonstramos a utiliza??o pr?tica do modelo elaborado aplicando-o ao diagn?stico de um projeto educativo realizado na plataforma on-line moodle

Made available in DSpace on 2014-12-17T14:54:50Z (GMT). No. of bitstreams: 1 CaioDC.pdf: 2782026 bytes, checksum: ffc0e89b5e796daecc6152d3075b6918 (MD5) Previous issue date: 2008-01-24 / The so-called Dual Mode Adaptive Robust Control (DMARC) is proposed. The DMARC is a control strategy which interpolates the Model Reference Adaptive Control (MRAC) and the Variable Structure Model Reference Adaptive Control (VS-MRAC). The main idea is to incorporate the transient performance advantages of the VS-MRAC controller with the smoothness control signal in steady-state of the MRAC controller. Two basic algorithms are developed for the DMARC controller. In the first algorithm the controller's adjustment is made, in real time, through the variation of a parameter in the adaptation law. In the second algorithm the control law is generated, using fuzzy logic with Takagi-Sugeno s model, to obtain a combination of the MRAC and VS-MRAC control laws. In both cases, the combined control structure is shown to be robust to the parametric uncertainties and external disturbances, with a fast transient performance, practically without oscillations, and a smoothness steady-state control signal / Neste trabalho ? apresentada uma proposta de um controlador, denominado Controlador em Modo Dual Adaptativo Robusto (DMARC), que estabelece uma liga??o entre um controlador adaptativo por modelo de refer?ncia (MRAC) e um controlador adaptativo por modelo de refer?ncia e estrutura vari?vel (VS-MRAC). A id?ia b?sica ? incorporar as vantagens de desempenho transit?rio do controlador VS-MRAC com as propriedades de regime permanente do controlador MRAC convencional. S?o desenvolvidos dois algoritmos b?sicos para o controlador DMARC. No primeiro o ajuste do controlador ? feito, em tempo real, atrav?s da varia??o de um par?metro na lei de adapta??o. No segundo algoritmo a lei de controle ? gerada, utilizando o modelo Takagi-Sugeno da l?gica nebulosa, para obter uma composi??o ponderada das leis de controle do MRAC e do VS-MRAC. Em ambos os casos, o esquema combinado de controle ? mostrado ser robusto ?s incertezas param?tricas e perturba??es externas, al?m de apresentar um desempenho r?pido e pouco oscilat?rio durante o transit?rio e um sinal de controle suave em regime permanente

A crescente procura por software de qualidade vem causando grande pressão sobre as empresas que trabalham com desenvolvimento de software. As entregas de produtos de software dentro do prazo e custo previstos vêm se tornando, a cada dia, um diferencial importante nesse ramo de atividade. Nesse sentido, as empresas procuram por metodologias que propiciem o desenvolvimento de produtos com qualidade, e que respeitem o custo e prazo previstos. Em resposta a essas necessidades, surgiu uma nova classe de metodologias de desenvolvimento de software, conhecidas como metodologias ágeis. Este trabalho apresenta um estudo realizado sobre as principais características existentes nessa nova classe de metodologias. Uma análise permitiu a identificação de semelhanças e diferenças existentes entre elas, o que possibilitou a criação de um modelo de referência para o desenvolvimento ágil de software. O modelo foi utilizado em uma avaliação de processo baseada no modelo de avaliação da ISO/IEC 15504. A avaliação permitiu a identificação de forças e fraquezas no processo avaliado e possibilitou a definição de ações de melhoria para que o processo avaliado se assemelhasse à um processo de desenvolvimento ágil. Palavra-chave: Metodologia ágil de desenvolvimento. Modelo de referência. Processo de desenvolvimento de software. Avaliação de processo de software / The vast demand for software with quality is causing a great pressure on the companies which work with software development. The delivery of software products within the schedule and cost is becoming, every day, an important issue in this area. Therefore, companies are seeking for methodologies to develop products with quality, within the timetable and the cost. Considering these needs, it became a new class of software development methodologies, known as agile methodologies. This research shows a work done upon the main existing characteristics in this new class of methodologies. An analysis allowed the identification of the existing similarities and differences among them, which it made possible to create a new reference model for agile software development. The agile model was used in process assessment based on assessment model from ISO/IEC 15504. The assessment alowed a identification of power and weakness on the process and alowed a definition of improvement action to the process with the intention of to approach the agile development process

A evolução das ferramentas computacionais, aliada à tecnologia da informação (TI) e ao ambiente web possibilitam a realização de projetos colaborativos, com maior integração de procedimentos, visando à comunicação, à coordenação e à cooperação da equipe multidisciplinar. O estudo de caso, realizado para o projeto de produto edificação, foi desenvolvido com a aplicação de um questionário nos escritórios de projeto em Porto Alegre e apontou para uma situação diversa da efetiva utilização destas ferramentas. O desafio do trabalho está no fato de se estabelecer os requisitos das equipes de projeto, para o desenvolvimento de um sistema de gestão do conhecimento, com a utilização da estrutura de metadados para conceber um mecanismo de busca das informações. O desenvolvimento do processo de investigação apresentou a influência da TI no setor de projetos; a adoção de um modelo de referência para gerenciamento do processo de projeto integrado de edificações (GPPIE) e a possibilidade de integração eficaz com um SGBD. / The evolution of computational tools, along with information technology (IT) and the web environment allow for collaborative projects, with a greater integration of procedures for communication, coordination and cooperation of the multidisciplinary team. The case study was conducted for the building design product, was developed with a questionnaire in the design offices in Porto Alegre, and pointed to a situation different from the effective use of these tools. The challenge of the work is to establish the requirements of the design team, developing a management system of Knowledge, using the metadata structure designing a search engine information. The development of the research showed the influence of IT in the design, the adoption of a reference model for building integrated design process management (BIDPM) and the possibility of effective combination with a DBMS.

Cette thèse s'intéresse à l'adaptation des lois de pilotage d'un avion de transport civil aux différentes incertitudes qui peuvent affecter sa dynamique. Le procédé de pilotage adaptatif est censé fonctionner en temps réel à bord de l'avion afin d'optimiser la performance boucle fermée en fonction des conditions dans lesquelles il évolue. Les incertitudes peuvent être liées à la méconnaissance des conditions de vol (par exemple la vitesse et l'altitude), à des non-linéarités aérodynamiques inconnues ou encore à la méconnaissance du pilote aux commandes. Les procédés adaptatifs qui répondent à ces problèmes se doivent d'être performants sur l'ensemble du domaine opérationnel de l'avion en présence de perturbations réalistes. D'autres contraintes spécifiques peuvent être ajoutées en fonction du contexte (par exemple des charges limites, la stabilité aéroélastique, etc.). Plusieurs méthodes adaptatives sont testées afin d'adapter le système aux larges incertitudes qui le composent. Elles associent en général un estimateur en ligne (aussi appelé loi de mise-à-jour) à une loi de commande structurée. La synthèse de ces deux éléments peut être réalisée simultanément pour les méthodes adaptatives dites " directes ", comme par exemple le Model Reference Adaptative Control qui utilise la stabilité au sens de Lyapounov. Mais cette synthèse peut aussi être découplée pour les méthodes adaptatives dites "indirectes", ce qui offre un large choix de techniques pour chaque élément (comme les Moindres Carrés pour l'estimation de paramètres physiques incertains et la synthèse sous forme LFR pour le correcteur). Le choix de la méthode dépend fortement du contexte applicatif et des nombreuses contraintes associées. Trois applications sont au cœur de ce mémoire. Elles traitent de l'ajustement de lois de guidage à un modèle pilote inconnu, du contrôle longitudinal de non-linéarités de l'avion, et de la mise au point de lois longitudinale et latérale de pilotage manuel qui s'adaptent à des conditions de vol inconnues. Des méthodes avancées d'analyse linéaire et non-linéaire (dérivées de la µ-analyse et d'algorithmes d'optimisation) sont aussi mises en place pour valider ces systèmes sophistiqués adaptatifs en temps réel. D'une façon générale, les méthodes adaptatives indirectes ont donné le plus de satisfaction. Leur performance est aussi bonne que celle des méthodes directes, mais le fait qu'elles estiment en ligne des paramètres physiques facilite la surveillance temps réel du procédé adaptatif et sa validation. / This thesis deals with adapting flight control laws of a civil transport aircraft to various incertainties which can affect its behaviour. The adaptive flight control system is supposed to run in real time onboard the airplane so that its closed-loop performance is optimized with respect to the current conditions. These incertainties may be linked to unknown flight conditions (e.g. unknown airspeed and altitude), or unknown aerodynamics non-linearities or even unknown behaviour of the pilot in command. The adaptive schemes that are derived to answer these problems must be valid on the whole flight envelope with realistic disturbances but other additional contraints may exist depending on the context (e.g. loads limits, aeroelastic stability, etc.). To accommodate for large uncertainties on the system, adaptive methods are investigated. They usually combine an online estimator (also called an update law) with a structured flight control law. The synthesis of both elements may be simultaneous on 'direct' adaptive methods, e.g. on Model Reference Adaptive Control, using Lyapunov's stability theory. But it can also be decoupled on 'indirect' adaptive methods, giving a full spectrum of techniques for both elements (such as Least-Squares for estimating unknown physical parameters and the LFR framework for designing controllers). The choice of a specific method really depends on the application context and the related constraints.Three applications are the core of this report. They deal with adjusting guidance law to the pilot's unknown behaviour, controlling a longitudinal non-linearity, and providing manual longitudinal and lateral flight control laws which adapt to unknown flight conditions. Advanced linear and non-linear analysis techniques (based on µ-analysis or on optimization algorithms) are also applied to validated these sophisticated real-time adaptive systems. Results showed that indirect adaptive schemes were generally the most satisfactory. Their performance is similar to the one of direct schemes but as indirect methods provide physical parameter estimates, real-time monitoring and offline validation seem quite easier.

Corporate expenses for IT support of marketing are surging every year, and therefore the processes of marketing support, which contain all the technical aspects of marketing campaign execution and measurement, are attracting more attention than before. The diploma thesis introduces a basic overview of direct marketing and marketing support operations in corporations and presents a reference model to help optimize the marketing support processes. The thesis contains a research of theoretical fundamentals of process modelling and reference model building, a basic overview of corporate direct marketing, an analysis of direct marketing processes and the most relevant processes of marketing support. The reference model, which is based on the outputs from both theoretical parts, includes a detailed description of marketing support processes and outlines the process boundaries in the form of SLA. The model is then tested on two case studies, which emphasize the practical opportunities as well as the major benefits of using the model.