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Can an indicator be NULL?
An attribute that is defined as an indicator has only two values, such as Active/Inactive, Yes/No, True/False, and On/Off....
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Rules on rules
A logical data model represents a business solution independent of technology, including the business rules. For example, the rule,...
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My Hero Zero
The Data Model Scorecard™ contains over 400 rules to apply when reviewing a data model. One of these rules...