influence the decisions made on which system to use as the target or in how to
modify the target system to be more accommodating of the data.
Extracting into Decision Support Systems
Data rules are generally not of particular concern in databases built from
operational systems and used for reporting or decision support. The impor-
tant point of these databases is that they contain accurate data. The only rea-
son the data import functions would execute a data rule would be to check for
inaccurate data. This means that there is really no matching of rules to
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