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Encyclopedia of Database Systems pp 1936–1943Cite as

Information Integration

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

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

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  3. Haas L. Beauty. The beast: the theory and practice of information integration. In: Proceedings of the 11th International Conference on Database Theory; 2007. p. 28–43.

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  4. Halevy AY. Answering queries using views: a survey. VLDB J. 2001;10(4):270–94.

    Article  MATH  Google Scholar 

  5. Halevy AY, Ashish N, Bitton D, Carey MJ, Draper D, Pollock J, Rosenthal A, Sikka V. Enterprise information integration: successes, challenges and controversies. In: Proceedings of the ACM SIGMOD International Conference on Management of Data; 2005. p. 778–87.

    Google Scholar 

  6. Lenzerini M. Data integration: a theoretical perspective. In: Proceedings of the 21st ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems; 2002. p. 233–46.

    Google Scholar 

  7. Rahm E, Bernstein PA. A survey of approaches to automatic schema matching. VLDB J. 2001;10(4):334–50.

    Article  MATH  Google Scholar 

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Author information

Authors and Affiliations

  1. The Recruit Institute of Technology, Mountain View, CA, USA

    Alon Halevy

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

    Alon Halevy

Authors
  1. Alon Halevy
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Corresponding author

Correspondence to Alon Halevy .

Editor information

Editors and Affiliations

  1. Georgia Institute of Technology College of Computing, Atlanta, GA, USA

    Ling Liu

  2. University of Waterloo School of Computer Science, Waterloo, ON, Canada

    M. Tamer Özsu

Section Editor information

  1. Dept. of Computer Science, Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA

    Kevin Chang

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Halevy, A. (2018). Information Integration. In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_1069

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