Chapter 3 Building Physical Diagrams

Defining domains in a PDM

Domains help you identify the types of information in your model. They define the set of values for which a column is valid. Applying domains to columns makes it easier to standardize data characteristics for columns in different tables.

In a Physical diagram, you can associate the following information with a domain:

• Data type, length, and precision
• Check parameters
• Business rules
• Mandatory property

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