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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the 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.
81

Proposta de um framework baseado em arquitetura orientada a serviços para a robótica

Guimarães Júnior, Carlos Solon Soares January 2015 (has links)
Sistemas embarcados, em especial aqueles utilizados em robótica, apresentam, em sua estrutura, uma multiplicidade de dispositivos que resultam em uma arquitetura bastante heterogênea e bem distribuída. Para auxiliar na resolução dessa complexidade inerente, este trabalho resgata os conceitos de frameworks, buscando na sua integração e modelo conceitual, desenvolver um conjunto de ferramentas que gerencia a mediação entre sistemas embarcados e demais aplicações de software, fornecendo bibliotecas e componentes reutilizáveis para aplicações na robótica. Propõe-se utilizar framework e middleware de sistemas open-source para integração entre a plataforma de software e hardware. Um dos objetivos do projeto é criar um framework multi-plataforma com diferentes tipos de serviços para o de desenvolvimento de aplicações no campo da robótica. O projeto tem como estudo de caso sistemas embarcados aplicados em robótica móvel e tecnologia assistiva. / Embedded systems, especially those used in robotics, present in its structure, a plurality of devices that result in a very heterogeneous and well distributed architecture. To help resolve this inherent complexity, the work rescues the concepts of frameworks, seeking their integration and conceptual model, develop a set of tools that manage to mediate between embedded systems and other of software applications, providing reusable libraries and components for applications in robotics. It is proposed to use framework and middleware systems open source for integration between the platform software and hardware. One of the project objectives is to create a multi-platform framework with different types of services, considering the programming and compatibility with hardware for the development of applications in the field of robotics. The project’s case study developing embedded applied in mobile and Assistive Technology robotics.
82

Cascading Web Services in Mobile Environments : Bridging Wireless and Wired Networks for Data Transactions

Kajtazi, Miranda, Vogel, Bahtijar January 2007 (has links)
Cascading Web Services represent a collection of services offered in a system consisting of multiple devices and multiple interacting platform independent networks. ‘Cascading’ enables Web Services to exploit access in diverse environments without manual intervention. The aim of this thesis is to investigate how Mobile Web Services interact with multiple other Web Services by allowing the generated content to cascade. These services are demonstrated as a technical design solution, in a number of cases within the field of Learning technologies. Communication among devices is preceded using request-response commands by cascading these commands between different Web Services that are self-contained and independent on their context or state. The system signifies a typical Service Oriented Architecture (SOA) based on a distributed system. Cascading Web Services involve multiple transport networks including Bluetooth Technology, GPRS, Wi-Fi, and Wired Networks. Whereas the protocol of this communication is to bridge Wired and Wireless networks for data transactions, specifically from a Bluetooth location-based network. A number of particular cases will be illustrated in the context of ‘educational outdoor activities’, to demonstrate how the system solution works involving users.
83

Jini kontra Web services, med intention att göra Web services pålitligt.

Böök, Klas, Strand, Christian January 2005 (has links)
Detta examensarbete behandlar Service Oriented Architecture (SOA) och dess implementeringar Jini och Web services. SOA beskriver hur applikationsintegration mellan olika plattformar skall ske och innebär att applikationer designas som tjänster för att enkelt integreras med andra applikationer. Dynamisk lokalisering av tjänster via en registertjänst används för att applikationer skall finna andra applikationer. Vi designar och implementerar en mekanism i Web services som gör det möjligt att byta en tjänst under exekvering. Ett sådant byte kan vara intressant av två skäl, tjänster kan registreras utan att vara tillgängliga, eller att det uppstår ett fel under exekvering som gör att tjänsten blir otillgänglig. / This degree project is about Service Oriented Architecture (SOA) and its implementations Jini and Web services. SOA is a description of how application integration between different platforms can be carried out by designing applications as services, which implies an easier integration with other applications. Dynamic location of services is carried out by consultation with a register service so that applications can find other applications. We design and implement a mechanism in Web services that makes it possible to change service during execution. A change of service can be interesting for two reasons, the service might be registered but not available or there might be some sort of fault during execution that makes the service unavailable.
84

Estabelecimento de uma arquitetura de referência orientada a serviços para ferramentas de teste de software / Estabilishment of a service-oriented reference architecture for the software testing tools

Lucas Bueno Ruas de Oliveira 11 January 2011 (has links)
O teste de software é reconhecido como uma importante atividade na garantia da qualidade de sistemas de software. Com o objetivo de dar apoio a essa atividade, uma diversidade de ferramentas de teste têm sido desenvolvida. Entretanto, grande parte dessas ferramentas é construída de forma isolada, possuindo arquiteturas e estruturas próprias, o que tem impactado negativamente a capacidade de integração e o reúso dessas ferramentas. Nesse contexto, esforços têm sido dedicados à disponibilização de ferramentas de teste orientadas a serviço, ou seja, ferramentas que são baseadas na SOA (Service Oriented Architecture). Em uma outra perspectiva, arquiteturas de referência têm desempenhado um importante papel no desenvolvimento de sistemas de software, uma vez que contém informações sobre como desenvolver sistemas para um determinado domínio de aplicação, buscando contribuir para o sucesso de sistemas desse domínio. Assim, o principal objetivo deste trabalho é o estabelecimento de uma arquitetura de referência orientada a serviço, denominada RefTEST-SOA (Reference Architecture for Software Testing Tools based on SOA), que agrega o conhecimento e a experiência de como organizar ferramentas de teste orientadas a serviço, visando também à integração, à escalabilidade e o reúso providos pela SOA. Para o estabelecimento dessa arquitetura, foi utilizado o ProSA-RA, um processo que sistematiza o projeto, representação e avaliação de arquiteturas de referência. Resultados alcançados no estudo de caso conduzido evidenciam que a RefTEST-SOA é uma arquitetura viável e reusável para o desenvolvimento de ferramentas de teste orientadas a serviço / Software testing is considered as an important activity to ensure the quality of software systems. To support such activity, a diversity of testing tools have been developed. However, most of them have been separately built and have usually their particular structures and architectures, which has hindered the integration and reuse of these tools. In this context, efforts have been employed in order to provide service-oriented testing tools, i.e., tools that are based on SOA (Service Oriented Architecture). In another perspective, reference architectures have played an important role in the development of software systems, since they contain information about how to develop systems for a particular application domain, contributing to the success of systems in that domain. Thereby, our main objective is to establish a service-oriented reference architecture, named RefTEST-SOA (Reference Architecture for Software Testing Tools based on SOA), which aggregates the knowledge and experience about how to organize service-oriented testing tools, also aiming at integration, scalability and reuse provided by SOA. To establish this architecture, we have used ProSA-RA, a process that provides guidelines to the design, representation and evaluation of reference architectures. Results achieved by a conducted case study indicate that RefTEST-SOA is a viable and reusable architecture for developing service-oriented testing tools
85

Proposta de um framework baseado em arquitetura orientada a serviços para a robótica

Guimarães Júnior, Carlos Solon Soares January 2015 (has links)
Sistemas embarcados, em especial aqueles utilizados em robótica, apresentam, em sua estrutura, uma multiplicidade de dispositivos que resultam em uma arquitetura bastante heterogênea e bem distribuída. Para auxiliar na resolução dessa complexidade inerente, este trabalho resgata os conceitos de frameworks, buscando na sua integração e modelo conceitual, desenvolver um conjunto de ferramentas que gerencia a mediação entre sistemas embarcados e demais aplicações de software, fornecendo bibliotecas e componentes reutilizáveis para aplicações na robótica. Propõe-se utilizar framework e middleware de sistemas open-source para integração entre a plataforma de software e hardware. Um dos objetivos do projeto é criar um framework multi-plataforma com diferentes tipos de serviços para o de desenvolvimento de aplicações no campo da robótica. O projeto tem como estudo de caso sistemas embarcados aplicados em robótica móvel e tecnologia assistiva. / Embedded systems, especially those used in robotics, present in its structure, a plurality of devices that result in a very heterogeneous and well distributed architecture. To help resolve this inherent complexity, the work rescues the concepts of frameworks, seeking their integration and conceptual model, develop a set of tools that manage to mediate between embedded systems and other of software applications, providing reusable libraries and components for applications in robotics. It is proposed to use framework and middleware systems open source for integration between the platform software and hardware. One of the project objectives is to create a multi-platform framework with different types of services, considering the programming and compatibility with hardware for the development of applications in the field of robotics. The project’s case study developing embedded applied in mobile and Assistive Technology robotics.
86

Desenvolvimento de sistemas de automação da manufatura usando arquiteturas orientadas a serviço e sistemas multi-agentes

Peixoto, João Alvarez January 2012 (has links)
Os requisitos de manufatura industrial apontam uma necessidade de reconfiguração e reprogramação do fluxo de processo, a fim de atender modificações no produto com as mudanças dos requisitos de mercado. Estas mudanças implicam em alterações no processo de fabricação, o que, em muitos casos, significa alterar o leiaute, reprogramar controladores, modificar acoplamentos e interfaceamentos, etc. Os tamanhos dos lotes de produção estão ficando menores e a variedade de produtos em uma mesma linha tem aumentado. Isto torna o tempo de preparação dos dispositivos de manufatura fator crucial na formação do custo final. Dispositivos com mais autonomia, capazes de se autogerenciar e que permitam uma troca rápida de funcionalidades passam a serem desejados em um ambiente de manufatura, onde os sistemas convencionais com programação centralizada, sequência definida no controlador central e arranjo de funcionalidades fixas deixam a desejar. Orientação a serviços é um conceito que propõe a descentralização do controle e a disposição de componentes de forma a se agruparem virtualmente e formar novos dispositivos, com novas funcionalidades, otimizando investimento, recurso e tempo de produção. Nesta abordagem os equipamentos passam a se comportar como agentes de manufatura, em um universo de multi-agentes, que negociam entre si o processo requerido, propiciando o atendimento à variação de produto e dispondo de um número maior de funcionalidades, o que reduz o tempo de troca de processos. Um estudo de caso de um sistema orientado a serviços, sob uma plataforma multi-agentes, é proposto neste trabalho, buscando fornecer subsídios para a análise de desempenho e potencialidades deste conceito. / The industrial manufacturing requirements indicate a need for reconfiguration and reprogramming of process flow in order to meet changes in the product with the changing market requirements. These changes imply changes in the manufacturing process, which in many cases, means changing the layout, reprogram controllers, modify interfaces and couplings etc. The production lot sizes are getting smaller and the variety of products in the same line has increased. This makes the preparation time of manufacturing devices crucial factor in the formation of the final cost. Devices with more autonomy, able to manage themselves and allow a rapid exchange of features are to be desired in a manufacturing environment, where conventional systems with centralized scheduling, sequence defined in the central controller and array of features still fall short. Service orientation is a concept that proposes to decentralize the control and disposition of components in order to regroup virtually and form new devices with new features, optimizing investment, resource and production time. In this approach the devices start to act as agents of manufacturing, in a universe of multi-agents, who negotiate among themselves the process required, providing care for the product variation and having a greater number of features, which reduces the switching time processes. A case study of system-oriented services, under a multi-agent platform is proposed in this work, aiming to provide tools for performance analysis and potential of the concept.
87

SOPLE-DE: an approach to design service-oriented product line architectures

Medeiros, Flávio Mota 31 January 2010 (has links)
Made available in DSpace on 2014-06-12T15:58:03Z (GMT). No. of bitstreams: 2 arquivo3244_1.pdf: 2061206 bytes, checksum: d9bbab1debda0a2122b877cceb8484ed (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2010 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / O reuso de software é um fator extremamente importante para empresas interessadas em aumentar sua produtividade, diminuir os custos e o tempo durante o desenvolvimento de sistemas e melhorar a qualidade de seus produtos e serviços. Nesse contexto, Linhas de Produto de Software (LPS) e Arquitetura Orientada a Serviços (SOA) são duas estratégias que estão atualmente recebendo uma grande atenção, tanto na área acadêmica quanto na indústria de software. Os conceitos de linhas de produto e arquitetura orientada a serviços compartilham alguns objetivos e características que podem ser usados em conjunto para aumentar as taxas de reuso de software. No entanto, para o resultado dessa junção ser otimizado, é necessário utilizar um processo de desenvolvimento bem definido. Caso contrário, a equipe de desenvolvimento poderá produzir software de maneira não sistemática, aumentando as chances de falha, o tempo e o custo de desenvolvimento. Com essa visão, esse trabalho apresenta uma abordagem para o projeto de arquiteturas para linhas de produto orientada a serviços, constituída de um conjunto de atividades e sub atividades com entradas e saídas especificadas, sendo cada uma delas realizada por um conjunto predefinido de papéis com responsabilidades definidas. Essa abordagem visa ajudar arquitetos de software a projetar arquitetura orientada a serviços para domínios específicos. Para garantir a qualidade da abordagem desenvolvida, uma pesquisa extensiva foi realizada para analisar o atual estado da arte de processos para o desenvolvimento orientado a serviços. Foram então considerados os pontos fracos e fortes dos processos estudados com o intuito de identificar e preencher as lacunas neles existentes. Por fim, essa abordagem foi validada e refinada por meio de um estudo acadêmico experimental preliminar
88

Service Oriented Architecture & Web Services : Guidelines for Migrating from Legacy Systems and Financial Consideration

Adeyinka, Oluwaseyi January 2008 (has links)
The purpose of this study is to present guidelines that can be followed when introducing Service-oriented architecture through the use of Web services. This guideline will be especially useful for organizations migrating from their existing legacy systems where the need also arises to consider the financial implications of such an investment whether it is worthwhile or not. The proposed implementation guide aims at increasing the chances of IT departments in organizations to ensure a successful integration of SOA into their system and secure strong financial commitment from the executive management. Service oriented architecture technology is a new concept, a new way of looking at a system which has emerged in the IT world and can be implemented by several methods of which Web services is one platform. Since it is a developing technology, organizations need to be cautious on how to implement this technology to obtain maximum benefits. Though a well-designed, service-oriented environment can simplify and streamline many aspects of information technology and business, achieving this state is not an easy task. Traditionally, management finds it very difficult to justify the considerable cost of modernization, let alone shouldering the risk without achieving some benefits in terms of business value. The study identifies some common best practices of implementing SOA and the use of Web services, steps to successfully migrate from legacy systems to componentized or service enabled systems. The study also identified how to present financial return on investment and business benefits to the management in order to secure the necessary funds. This master thesis is based on academic literature study, professional research journals and publications, interview with business organizations currently working on service oriented architecture. I present guidelines that can be of assistance to migrate from legacy systems to service-oriented architecture based on the analysis from comparing information sources mentioned above.
89

Service Oriented Architecture Maturity Models - A guide to SOA adoption

Meier, Fabian January 2006 (has links)
To support the difficult process of SOA adoption, SOA maturity models are published. In this thesis a literature analysis introduces the area of SOA maturity models and highlights benefits and criticism. As a result, the combined SOA maturity model (CSOAMM), a model to facilitate the interpretation and comparison of SOA maturity models, is proposed. CSOAMM is a model with 10 levels that describes SOA maturity by combining level characteristics of two recently published maturity models: SIMM and SOAMM. CSOAMM was created by a comparative analysis in combination with a relational content analysis. The model can be used for collaboration between companies and points out that a common understanding of SOA adoption exists.
90

Tjänsteorienterad Integration, ESB

Bood, Martin, Fisk, Karl-Johan January 2007 (has links)
För att dagens system och deras allt mer komplexa applikationer ska kunna integreras med varandra krävs det att de kommunicerar via tjänster. Denna tjänsteorienterade integration uppnås genom att man använder sig av Service Oriented Architecture (SOA) som bygger på löst kopplade tjänster som kommunicerar med varandra på ett standardiserat sätt. En viktig del i en integrationslösning är Enterprise Service Bus (ESB). I denna rapport kommer vi förklara grunderna i tjänsteorienterad integration och sedan fördjupa oss i ESB. Då ESB är ett luddigt begrepp ska vi på ett enkelt och lättbegripligt sätt ge vår syn på begreppet, samt dess fördelar och nackdelar. Vi kommer även att ge marknadens syn på ESB genom en enkätundersökning som innefattar både leverantörer, konsulter och kunder. / If today’s software systems and their complex applications shall be able to integrate with each other, they have to communicate through services. This service oriented integration can be accomplished by using Service Oriented Architecture (SOA) where all components are loosely coupled and communicate in a standardized way. An important part when building an integrated solution is the Enterprise Service Bus (ESB). In this report we will explain the basics of SOA and take a more detailed look at the world of ESB. The concept of ESB is not well defined and hence means different things to different people. We are going to present an interpretation of the ESB and its benefits and disadvantages. To find out what the market thinks about ESB we have been talking to producers, consultants and customers.

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