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Common Warehouse Metamodel

  • Reference work entry
Encyclopedia of Database Systems

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Synonyms

Common Warehouse Metadata Interchange (CWMI); CWM

Definition

The Common Warehouse Metamodel (CWM™) is an adopted specification from the OMG (Object Management Group) standards body. It defines standard interfaces that can be used to enable easy interchange of data warehouse and business intelligence metadata between data warehouse tools, data warehouse platforms and data warehouse metadata repositories in distributed heterogeneous environments. It supports relational, non-relational, multi-dimensional, and most other objects found in a data warehousing environment. It leverages three other standards from OMG:

  • UML – Unified Modeling Language

  • MOF – Meta Object Facility

  • XMI – XML Metadata Interchange

The Object Management Group has been an international, open membership, not-for-profit computer industry consortium since 1989 with over 700 member organizations.

Historical Background

An initial Request For Proposal (RFP) for a common warehouse metadata interchange (CWMI) was issued...

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Recommended Reading

  1. Common Warehouse Model (CWM) Specification, Version 1.1, Object Management Group. Needham, MA, March 2, 2003. http://www.omg.org/technology/documents/formal/cwm.htm.

  2. CWM Metadata Interchange Patterns Specification, Version 1.0, Object Management Group. Needham, MA, March 25, 2004.

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  3. Grossman R.L., Hornick M.F., and Meyer G. Data mining standards initiatives. Commun. ACM., 45(8):59–61, 2002.

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  4. Poole J., Chang D., Tolbert D., and Mellor D. Common Warehouse Metamodel: An Introduction to the Standard for Data Warehouse Integration. Wiley, 2002.

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  5. Vaduva A. and Dittrich K.R. Metadata Management for Data Warehousing: Between Vision and Reality. In Proc. Int. Conf. on Database Eng. and Applications, 2001, p. 0129.

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Author information

Authors and Affiliations

  1. University of Ottawa, Ottawa, ON, Canada

    Liam Peyton

Authors
  1. Liam Peyton
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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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Peyton, L. (2009). Common Warehouse Metamodel. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_900

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