July 2010
Beginner to intermediate
312 pages
9h 51m
English
Content preview from Business Metadata: Capturing Enterprise Knowledge
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Chapter 9 Business Metadata Infrastructure
170
Those familiar with data warehouse development will recognize that the
same set of issues that are used to address “Slowly Changing Dimensions”
apply here as well. Those issues include:
Is the requirement to only keep and report the latest value for the meta-
data object? In this case we “overwrite” the value of the metadata and
thus, only the most recent value can be communicated.
Is the requirement to keep a limited number of values for the meta-
data? This may be the case where the need is to keep the current ver-
sion and one previous version of the metadata value. In this case, we
must copy the curr ...
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