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Object Views through Search Views of Web Datasources

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Conceptual Modeling — ER ’99 (ER 1999)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1728))

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Abstract

Web datasources usually allow a restricted access (through CGI calls) and their output consists of generated HTML documents. Unfortunately, in many cases the data they provide happen to be available only on the Web. In this paper, we describe a system based on a Web wrapper combined with an object multidatabase system that enables the user to query Web datasources as well as other datasources with an OQL-like query language. The approach is based on two successive views of the Web datasource: a search view characterizing its access and an object view extending the restricted search view with respect the extraction capabilities of the wrapper. Both views are non-materialized to provide the user with up-to-date data. Our approach has been developed and demonstrated as part of the multidatabase system supporting queries via uniform Object Protocol Model (OPM) interfaces.

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Author information

Authors and Affiliations

  1. Data Logic division, Gene Logic Inc., 2001 Center St, Suite 600, Berkeley, CA, 94704, USA

    Zoé Lacroix

Authors
  1. Zoé Lacroix
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Editor information

Editors and Affiliations

  1. Conservatoire National des Arts et Métiers, 292 Rue Saint Martin, F-75141, Paris Cedex 03, France

    Jacky Akoka

  2. Université de Versailles, 45 Avenue des Etats Unis, F-78035, Versailles Cedex, France

    Mokrane Bouzeghoub  & Elisabeth Métais  & 

  3. ESSEC, Avenue Bernard Hirsch, F-92021, Cergy Cedex, France

    Isabelle Comyn-Wattiau

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© 1999 Springer-Verlag Berlin Heidelberg

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Lacroix, Z. (1999). Object Views through Search Views of Web Datasources. In: Akoka, J., Bouzeghoub, M., Comyn-Wattiau, I., Métais, E. (eds) Conceptual Modeling — ER ’99. ER 1999. Lecture Notes in Computer Science, vol 1728. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-47866-3_12

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  • DOI: https://doi.org/10.1007/3-540-47866-3_12

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-66686-8

  • Online ISBN: 978-3-540-47866-9

  • eBook Packages: Springer Book Archive

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