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Information Integration

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Encyclopedia of Database Systems

Synonyms

Data integration; Enterprise information integration

Definition

Information integration systems offer uniform access to a set of autonomous and heterogeneous data sources. Sources can range from database systems and legacy systems to forms on the Web, web services and flat files. The data in the sources need not be completely structured as in relational databases. The number of sources in an information integration application can range from a handful to thousands.

Historical Background

Database applications are typically heavily designed and tuned for a specific context. But as data management needs in enterprises change and the information economy evolves, the need to combine information from multiple sources arises frequently. Examples of such scenarios include mergers and acquisitions, internal restructuring, the need to interoperate with third parties and to expose data on the web. Since the early 1980s the need to combine multiple heterogeneous data sources has become a...

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Recommended Reading

  1. Deshpande A., Ives Z., and Raman V. Adaptive query processing. Foundations and Trends in Databases. Now Publishers, 2007. http://www.nowpublishers.com/dbs.

  2. Franklin M., Halevy A., and Maier D. Dataspaces: a new abstraction for data management. ACM SIGMOD Rec. 34(4):27–33, December, 2005.

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  3. Haas L. Beauty and the beast: The theory and practice of information integration. In Proc. 11th Int. Conf. on Database Theory, 2007, pp. 28–43.

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  4. Halevy A.Y. Answering queries using views: a survey. VLDB J., 10(4), 2001.

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  5. Halevy A.Y., Ashish N., Bitton D., Carey M.J., Draper D., Pollock J., Rosenthal A., and Sikka V. Enterprise information integration: successes, challenges and controversies. In Proc. ACM SIGMOD Int. Conf. on Management of Data, 2005, pp. 778–787.

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  6. Lenzerini M. Data integration: a theoretical perspective. In Proc. 21st ACM SIGACT-SIGMOD-SIGART Symp. on Principles of Database Systems, 2002, pp. 233–246.

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  7. Rahm E. and Bernstein P.A. A survey of approaches to automatic schema matching. VLDB J., 10(4):334–350, 2001.

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Author information

Authors and Affiliations

  1. Google Inc., Mountain View, CA, USA

    Alon Halevy

Authors
  1. Alon Halevy
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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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Halevy, A. (2009). Information Integration. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_1069

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