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Virtual Data Warehouse

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A warehouse is collection of assets, available or accessible, on some terms, to some community of users.  Thus a data warehouse is a collection of information assets. 

A warehouse may be centralized, physically distributed, or virtual.  A virtual warehouse may be accessed though a portal and/or using grid computing.

 A data warehouse can be described from the outside as a very large component offering a range of data services, through a number of well-defined interfaces. Internally, the data warehouse may be implemented through multiple heterogeneous mechanisms, and may even be distributed across multiple platforms / locations, which suggests a component-based internal architecture, but this complexity can be hidden from data users.

This approach separates two aspects of Data Warehousing:

  • how you specify and introduce (gradually, or all at once) a set of data services that link to some notion of business process and business value
  • how you support these data services with an (evolving) assembly of new pieces and legacy pieces
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Implementing the Virtual Data Warehouse

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Page updated November 27th, 2003
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