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Abstract(s)
A natural evolução dos sistemas de informação nas organizações envolve por um lado a instalação de
equipamentos actualizados, e por outro a adopção de novas aplicações de suporte ao negócio,
acompanhando o desenvolvimento dos mercados, as mudanças no modelo de negócio e a maturação
da organização num novo contexto.
Muitas vezes esta evolução implica a preservação dos dados existentes e de funcionalidades não
cobertas pelas novas aplicações. Este facto leva ao desenvolvimento e execução de processos de
migração de dados, de aplicações, e de integração de sistemas legados.
Estes processos estão condicionados ao meio tecnológico disponível e ao conhecimento existente
sobre os sistemas legados, sendo sensíveis ao contexto em que se desenrolam.
Esta dissertação apresenta um estado da arte das abordagens à migração e integração, descreve as
diversas alternativas, e ilustra de uma forma sistematizada e comparativa os exercícios realizados
usando diferentes abordagens, num ambiente real de migração e integração em mudança.
The natural evolution of information systems on organizations involves the installation of upgraded equipment and the adoption of new applications to support the business, following the market development, the changes of the business model and the maturation of the organization in a new context. Often this implies the preservation of existing data and functionalities that are not included in new applications. This leads to the development and implementation of new procedures regarding the data and applications migration, and the integration of legacy systems. These integration processes are constrained by the available technological environment and also by the existing knowledge about legacy systems, being sensitive to the context in which they take place. This paper presents a state of the art on approaches to migration and integration, describes various alternatives, and illustrates, in a systematic and comparative way, the performed exercises using different approaches, in a changing real world migration and integration scenario.
The natural evolution of information systems on organizations involves the installation of upgraded equipment and the adoption of new applications to support the business, following the market development, the changes of the business model and the maturation of the organization in a new context. Often this implies the preservation of existing data and functionalities that are not included in new applications. This leads to the development and implementation of new procedures regarding the data and applications migration, and the integration of legacy systems. These integration processes are constrained by the available technological environment and also by the existing knowledge about legacy systems, being sensitive to the context in which they take place. This paper presents a state of the art on approaches to migration and integration, describes various alternatives, and illustrates, in a systematic and comparative way, the performed exercises using different approaches, in a changing real world migration and integration scenario.
Description
Keywords
Integração de informação Migração de dados Migração Continuada Sistemas Legados Ontologia Information integration Data migration Continuing Migration Legacy Systems Ontology
Citation
Publisher
Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto