Integração de fontes de dados heterogeneas baseadas no modelo de dados XML

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

Over the last few years, the Web (World Wide Web) has been used to publish databases, however the user must consider the features of such environment before to establish the database integration. This work proposes using the MDBS (Multidatabase System) architecture to integrate heterogeneous databases in flexible and dynamic environment, such as Web or ad hoc networks. Flexible and dynamic environments are characterized by high independence from connection participants, low control over available services and high tolerance to communication failures. Integrating databases published on such environments requires an integration strategy that guarantees local databases autonomy. MDBS technology uses a query language as integration mechanism, which is responsible for solving integration conflicts. Thus, the query language must provide constructs to perform queries over several different data sources. Furthermore, it should be capable for solving integration conflicts. This work proposes an extension to the XQuery language, called MXQuery. The key feature of the proposed language is to provide mechanisms, which support the capability to jointly manipulate data in different data sources based on an XML data model.

ASSUNTO(S)

sistemas de informacao banco de dados - dissertaÇÕes

ACESSO AO ARTIGO

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