Web Service Composition
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Desenvolvimento e avaliação de algoritmos para composição dinâmica de web services baseada em QoS / Development and evaluation of algoritms for the QoS-aware web services composition problem
This MSc dissertation addresses the QoS-aware Web services composition (QWSC) problem. The field of e-commerce systems was selected because it comprises an area in wide expansion, both in national and international scenarios. Furthermore, e-commerce systems can benefit from QWSC due to its interoperability and compliance to the requirements of quality of ser
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/06/2012
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2. A timestamp-based two phase commit protocol for web services
Service Oriented Architecture (SOA) allows the development of software with requirements of interoperability and loose coupling. New services can be offered through the composition of existing services in order to address new business requirements. Business-to-business collaborative web applications demand a loosely coupled, coarse-grained interaction model.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2011
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3. Uma plataforma de integração de middleware para computação ubíqua
One of the current challenges of Ubiquitous Computing is the development of complex applications, those are more than simple alarms triggered by sensors or simple systems to configure the environment according to user preferences. Those applications are hard to develop since they are composed by services provided by different middleware and it is needed to k
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/11/2011
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4. Composição automatizada de serviços geográficos baseada em requisitos de qualidade de geodados / Automated composition of geospatial services based on geodata quality requirements
The Service-Oriented Architecture represents a new paradigm for development of GIS applications, allowing to share computational resources between institutions in a distributed computing environment. The implementation of these applications can be accomplished through the building of service compositions, a procedure for aggregate functionalities implemented
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/10/2011
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5. COMPOSIÇÃO DINÂMICA DE SERVIÇOS WEB SEMÂNTICOS UTILIZANDO ABORDAGENS DA ENGENHARIA DIRIGIDA POR MODELOS / DYNAMIC COMPOSITION OF SEMANTIC WEB SERVICES USING APPROACHES OF ENGINEERING DIRECTED BY MODELS
The use of the Internet as a way to publish new applications and deliver new functionalities has consolidated the use of web services technology. Once web services technology enables a high degree of autonomy and interoperability, it provides a basic infrastructure for the development and composition of new services, which has benefited the business process
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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6. COMPOSER-SCIENCE: UM FRAMEWORK PARA A COMPOSIÇÃO DE WORKFLOWS CIENTÍFICOS
Um conceito importante nas pesquisas em e-Science é o de workflows científicos, que, em geral, são longos, compostos de várias aplicações que, em conjunto, representam um experimento científico. Uma possibilidade para auxiliar na definição destes workflows científicos é o uso de ferramentas que agreguem semântica para auxiliar na sua composição
Publicado em: 2010
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7. Semantic web services: from modeling to composition / Serviços Web Semânticos: da modelagem à composição
The automation of the discovery, composition and invocation of Web Services is an important step to the success of the Semantic Web. If no single Web Service satisfies the functionality required by one user, an alternative is to combine existing services that solve parts of the problem in order to reach a complete solution. Web Services composition can be ac
Publicado em: 2009
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8. Modelos e algoritmos para composição de Web services com qualidade de serviço / Models and algorithms for Web services composition with quality of service
This work presents the modeling, the prototype and the results of the developing of a middleware for dynamic composition of Web Services named DWSC-M (Dynamic Web Service Composition Middleware). The main focus of this middleware is to allow services being dynamically composed, considering aspects of quality of service in the choice of services that are part
Publicado em: 2009
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9. A QoS-Based approach for dynamic web service composition.
Web services have become a de facto standard for integration of systems in distributed environments by providing means for exchanging data in a standardized way over the Internet. In fact, this allows computer-computer interaction regardless the programming languages, platform and operating systems used. However, the way services are defined is not enough fo
Publicado em: 2009
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10. Um ambiente para especificação e execução AD-HOC de processos de negócio baseados em serviços Web
Recently the focus given to Web Services and Semantic Web technologies has provided the development of several research projects in different ways to addressing the Web services composition issue. Meanwhile, the challenge of creating an environment that provides the specification of an abstract business process and that it is automatically implemented by a c
Publicado em: 2008
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11. ComposiÃÃo adaptativa de Web services
Web services have played an important role in the development of distributed applications. In particular, the possibility of composing already implemented web services in order to provide a new functionality is an interesting approach for building distributed systems and business processes, in a way that it diminishes the total time of development and promot
Publicado em: 2007
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12. Composição dinâmica de web services
As invocações a serviços disponíveis na internet são construídas de forma estática, sempre referenciando o mesmo web service e o mesmo web method. Quando este serviço apresentar baixa disponibilidade o desempenho da aplicação será reduzido. Para evitar este problema é necessário que a aplicação tenha a habilidade de identificar o melhor servi�
Publicado em: 2007