Interoperabilidade entre sistemas de informação baseados na Web
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2008
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A necessidade de integrar Sistemas de Informação sempre foi uma parte fundamental do seu desenvolvimento. No entanto, é indiscutível que nos últimos anos, com a popularização das tecnologias baseadas na Internet, a sua importância recebeu um grande impulso. A integração entre diferentes sistemas informáticos não é um problema novo. Arquitecturas baseadas em mensagens e sistemas de RPC, bem como várias outras tecnologias, das quais se destacam o CORBA, o DCOM e o JavaRMI, foram criadas para tentar resolver esta problemática, mas só com os Web Services é que na realidade a integração se torna efectivamente universal. Os Web Services apresentam um enorme potencial dado que pela primeira vez se produziu um consenso em torno das normas standard a utilizar. A interoperabilidade dos Web Services é sobretudo o reflexo do esforço reunido dos grandes produtores de software e as das organizações que definem as especificações como o WS-I, em torno de um conjunto de linguagens e tecnologias, designadamente: XML, SOAP, UDDI e WSDL. Perante o seu potencial e após um período de desenvolvimento e maturação, é expectável que os WS venham a emergir como uma das primeiras soluções de interoperabilidade e conectividade mais bem sucedidas, permitindo a redução de custos e a rapidez de desenvolvimento, implementação e integração de todo o tipo de sistemas. Tendo por referência as características estudadas das arquitecturas orientadas aos serviços (SOA), esta tese propõe um modelo de SI usando Web Services, concretizado através do desenvolvimento de um protótipo que implementa a integração entre o portal TRAS-OS-MONTES.NET e o sistema WSAutarquias.
The need to integrate Information Systems has always been a fundamental part in its development. However, it is undeniable that in recent years with the popularization of technologies based on the Internet, its importance has received a great boost. The integration between different systems is not a new problem. Architectures based on messages and RPC systems, as well as various technologies, which are highlighted the CORBA, DCOM and JavaRMI, were created to try to solve this problem, but only with the Web services is that in fact the integration becomes truly universal. The Web services have enormous potential because for the first time there produced a consensus around the standard protocols to be used. Interoperability of Web Services is primarily a reflection of the effort meeting of the major producers of software and the organizations that define the specifications such as WS-I, around a set of languages and technologies including: XML, SOAP, WSDL and UDDI. Given its potential and after a period of development and maturation, it is expected that the WS will emerge as one of the first solutions for interoperability and connectivity more successful, allowing the reduction of cost and speed of development, implementation and integration of the whole type of systems. Having by reference the studied characteristics of the service oriented architectures (SOA), this thesis proposes a model of SI using Web Services, implemented through the development of a prototype that implements the integration of the portal TRAS-OS-MONTES.NET and the WSAutarquias system.
The need to integrate Information Systems has always been a fundamental part in its development. However, it is undeniable that in recent years with the popularization of technologies based on the Internet, its importance has received a great boost. The integration between different systems is not a new problem. Architectures based on messages and RPC systems, as well as various technologies, which are highlighted the CORBA, DCOM and JavaRMI, were created to try to solve this problem, but only with the Web services is that in fact the integration becomes truly universal. The Web services have enormous potential because for the first time there produced a consensus around the standard protocols to be used. Interoperability of Web Services is primarily a reflection of the effort meeting of the major producers of software and the organizations that define the specifications such as WS-I, around a set of languages and technologies including: XML, SOAP, WSDL and UDDI. Given its potential and after a period of development and maturation, it is expected that the WS will emerge as one of the first solutions for interoperability and connectivity more successful, allowing the reduction of cost and speed of development, implementation and integration of the whole type of systems. Having by reference the studied characteristics of the service oriented architectures (SOA), this thesis proposes a model of SI using Web Services, implemented through the development of a prototype that implements the integration of the portal TRAS-OS-MONTES.NET and the WSAutarquias system.
Descrição
Dissertação de Mestrado em Tecnologias das Engenharias
Palavras-chave
Sistemas de Informação , Tecnologias de Informação , Sociedade de Informação , Softwares de integração