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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2001.tde-05102004-172528
Document
Author
Full name
Cláudio Luís Pereira Ferreira
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2001
Supervisor
Committee
Becerra, Jorge Luis Risco (President)
Melnikoff, Selma Shin Shimizu
Nakanishi, Tatuo
Title in Portuguese
Maestro: um middleware para suporte a aplicações distribuídas baseadas em componentes de software.
Keywords in Portuguese
componentes de software
middleware
RM-ODP
sistemas distribuídos
Abstract in Portuguese
É o trabalho de um middleware organizar as atividades de seus diferentes elementos componentes de maneira a operar sincronamente com a execução de uma aplicação. O resultado deste trabalho deve ser transparente para quem interage com o sistema, percebendo-o como um único bloco coeso e sincronizado, orquestrado por um agente principal. Este é o objeto deste trabalho, a especificação de um middleware e seus componentes internos indicando suas principais características e funcionalidades e também sua operação na execução de uma aplicação distribuída. Também foi levado em consideração os novos ambientes nos quais as aplicações distribuídas estão inseridas tais como a diversidade de dispositivos gerenciados pelos usuários, a necessidade de constantes mudanças no sistema, o uso de novas tecnologias no desenvolvimento de software e a necessidade de definições de sistemas abertos. Para a especificação deste middleware, foi utilizado o modelo de referência Open Distributed Processing (ODP) da ISO/IEC que permite que um sistema seja visualizado em cinco pontos de vista distintos. Ao final o sistema é especificado utilizando a tecnologia de componentes de software, ilustrando seu uso numa aplicação comercial.
Title in English
Maestro: a middleware for support to distributed applications based on software componentes.
Keywords in English
distributed systems
middleware
RM-ODP
software components
Abstract in English
It’s the job of a middleware to organize the activities of its different component elements as to operate in synchrony with the execution of an application. The result of this work should be transparent to whom interact with the system, perceiving it as a single synchronized and cohered block, orchestrated by a master agent. This is the subject of this work, the specification of a middleware and its internal components indicating its major characteristics and functionalities and also its operation in the execution of distributed applications. It was also taken into account the new environment in which the distributed applications are inserted such as the diversity of devices managed by the users, the necessity for constant system changing, the use of new technologies in software development and the necessity for definition of open systems. For the specification of this middleware, it was used the reference model of Open Distributed Processing (ODP) from ISO/IEC that allows a system to be visualized by five different points of view. By the end the system is specified using the technology of component software, illustrating its use through commercial component software.
 
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Maestro.pdf (1.02 Mbytes)
Publishing Date
2004-10-15
 
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