Author's Note: This column begins an eight-part series adapted from the book Universal Meta Data Models by David Marco and Michael Jennings (John Wiley & Sons).

Almost every corporation and government agency has already built, is in the process of building or is looking to build a managed meta data environment (MME). Many organizations, however, are making fundamental mistakes. An enterprise may build many meta data repositories (or "islands of meta data") that are not linked together and, as a result, do not provide as much value (see sidebar).

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