Uma metodologia para integração de sistemas legados e bancos de dados heterogeneos

AUTOR(ES)
DATA DE PUBLICAÇÃO

1998

RESUMO

Applications increasingly need to access different data sources to get information. Many of these sources are managed by legacy systems, and need to be integrated or migrated to become more flexible and manageable. This work proposes a methodology to help the integration of these heterogeneous data sources and which takes legacy data into account, considering the features of each system. Data integration is done through a federated database system. The methodology takes into account several factors that help the choice of the better solution to be applied on each case, and an algorithm to make the federated system and to process queries using this system. The proposed methodology was validated by a case study on databases and legacy systems of the city hall of Paulínia, SP

ASSUNTO(S)

banco de dados sistemas de informação geografica

ACESSO AO ARTIGO

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