Uso das metodologias orientadas a objectos para migração de sistemas de informação legados: estudo de caso sistema de informação para gestão de equipamentos médicos

Abstract

The present work presents a theoretically, empirically and practical informed analysis of the use of object-oriented methodologies for the migration of legacy information systems. The theoretical basis is informed by object-oriented methodologies, legacy information systems and legacy information systems migration tools. The object-oriented paradigm defines principles and concepts that allow the development of systems closer to visual reality. In this work, the different object-oriented analysis and design methodologies are described, with greater emphasis on the Object Oriented Software Engineering (OOSE) methodology and the tools that help in the migration process of legacy systems. The empirical basis is the case study of an information system for medical equipment management and the focus of the work is the migration of the legacy system known as SIM-ORGANIZER. This is a qualitative, exploratory and descriptive study, without a generalizing character, with a focus on the process and not on the product. The research method used was the “case study”. This method suggests inductive data analysis and considers the natural location as a direct source of data. Direct and participatory observation, which is characterized by the researcher's involvement in the activities of the organization whose study is involved, were the techniques used to collect data to support the work, combined in an incremental and iterative process with interviews and literature review. The practical basis is the modeling of the information system for medical equipment management, using the OOSE methodology, Object Oriented Reengineering Patterns, Visual Studio 2005 and MySQL. This work is a theoretical-practical contribution to software reengineering for use/implementation in organizations. (TRADUÇÃO NOSSA)