Rules and Cardinality

  • 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....

    1
    Steve Hoberman
  • Rules on rules

    A logical data model represents a business solution independent of technology, including the business rules. For example, the rule,...

    0
    Steve Hoberman
  • My Hero Zero

    The Data Model Scorecard™ contains over 400 rules to apply when reviewing a data model. One of these rules...

    0
    Steve Hoberman