2002 by
Prentice Hall, Inc.
12-14
Data Warehousing and Data Mining
nKey Concepts:
nMetadata: The part of the
warehouse that defines the data.
Metadata means “data about data.” Metadata explains the meaning
of each data element, how each element relates to each other,
etc.
nQuality data: Is the cleaning
process
nData marts: Is a subset of data
pulled off the warehouse for a specific group of users