Domains (CDM/LDM/PDM)

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

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

• Creating a Domain
  You can create a domain from the Browser or Model menu.
• Domain Properties
  To view or edit a domain's properties, double-click its Browser or list entry. The property sheet tabs and fields listed here are those available by default, before any customization of the interface by you or an administrator.
• Cascading Updates to Columns/entity Attributes Associated with the Domain
  When you modify data types associated with a domain, an update confirmation box is displayed asking if you want to modify the columns/entity attributes currently using the domain.
• Enforcing Non-divergence from a Domain in a Data Model
  You can enforce non-divergence between a domain and the columns/entity attributes that use the domain.