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Web ETL

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Encyclopedia of Database Systems

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Synonyms

ETL using web data extraction techniques

Definitions

As ETL (acronym for Extraction, Transformation and Loading) is a well-established technology for the extraction of data from several sources, their cleansing, normalization and insertion into a Data Warehouse (e.g., a Business Intelligence System), Web ETL stands for an ETL process where the external data to be inserted into the Data Warehouse is extracted from semi-structured Web pages (e.g., in HTML or PDF format) using Web Data Extraction techniques.

Particularly, back-end interchange of structured data just using the Web, e.g., two database systems exchanging data with Web EDI technology (EDI (Electronic Data Interchange) stands for techniques and standards for the transmission of structured data, for example over the Web, in an application-to-application context.), is not a Web ETL process as no semi-structured data needs to be transformed using Web Data Extraction techniques.

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Recommended Reading

  1. Baumgartner R., Flesca S., Gottlob G. Visual web information extraction with Lixto. In Proc. 27th Int. Conf. on Very Large Data Bases, 2001, pp. 119–128.

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  2. Baumgartner R., Frölich O., Gottlob G., Harz P., Herzog M., and Lehmann P. Web data extraction for business intelligence: the Lixto approach, In Proc. Datenbanksysteme in Business, Technologie und Web (BTW), 2005, pp. 48–65.

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  3. Frölich O. Optimierung von Geschäftsprozessen durch Integrierte Wrapper-Technologien. Dissertation, Institute of Information Systems, Vienna University of Technology, 2006.

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Author information

Authors and Affiliations

  1. Lixto Software GmbH, Vienna, Austria

    Oliver Frölich

Authors
  1. Oliver Frölich
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Editor information

Editors and Affiliations

  1. College of Computing, Georgia Institute of Technology, 266 Ferst Drive, 30332-0765, Atlanta, GA, USA

    LING LIU (Professor) (Professor)

  2. Database Research Group David R. Cheriton School of Computer Science, University of Waterloo, 200 University Avenue West, N2L 3G1, Waterloo, ON, Canada

    M. TAMER ÖZSU (Professor and Director, University Research Chair) (Professor and Director, University Research Chair)

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© 2009 Springer Science+Business Media, LLC

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Frölich, O. (2009). Web ETL. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_1166

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