Using full match classes for self-maintenance of mediated views

  • Authors:

  • Valéria Magalhães Pequeno;Vânia Maria Ponte Vidal

  • Affiliations:

  • Computer Department, Federal University of Ceara, Campus do Pici, Caixa Postal 12166, Fortaleza, Ce, Brasil;Computer Department,Federal University of Ceara, Campus do Pici, Caixa Postal 12166, Fortaleza, Ce, Brasil

  • Venue:
  • Enterprise information systems IV
  • Year:
  • 2003

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Abstract

Sharing information among multiple heterogeneous and autonomous data sources has emerged as a new and strategic requirement in modern enterprises. In this paper, we use a mediator-based approach for integrating multiple heterogeneous data sources. The mediator supports materialized views (mediated views) which are stored in a centralized repository. The queries on the view can be processed directly from the integrated view, with no need for accessing the remote sources. The main difficulty with this approach is to maintain the consistency of the materialized view with respect to the source databases updates. Usually, match classes are not self-maintainable. In a prior paper, we presented a technique for self-maintenance of full match classes. In this work, we show how to make other types of match classes self-maintainable by using full match classes as auxiliary classes.