Constraints Tab

Constraints allow you to limit the values of an attribute. The Constraints tab on the attribute information page allows you to view and edit the constraints for the attribute.

• Modeled—Modeled constraints are inherent to the attribute out-of-the box, and cannot be edited, deleted, or disabled.

• New—New constraints are constraints which were added to an attribute in the context of the currently viewed type.

• Inherited—Inherited constraints are modeled or new constraints on an attribute that are inherited from a parent type. You cannot edit or delete an Inherited constraint, but you can disable it if it is not modeled.

Constraints are displayed in a table, grouped by the type of constraint (New, Inherited, or Modeled). The following table lists and describes the columns displayed in the Constraints table:

Column Name

Description

Rule

The type of constraint. For a list of constraint rules, see Attribute Constraint Rules.

Data

The additional data, if any, that defines the constraint behavior.

Condition

This does not apply for PTC FlexPLM attributes.

Enable?

This checkbox determines whether the constraint is enabled. If this checkbox is cleared, the constraint remains defined, but is not active on the attribute.

Only New and Inherited constraints can be disabled. Modeled constraints cannot be disabled.