Foreign keys will be propagated as primary key components in the child table.
Parent is optional
The record represented by the parent table is not required for a record in the child table. If the relation line is specified as being identifying, this field is unavailable.
To cardinality
The number of records in the child table that can exist for each parent record.
Referential Integrity
The actions to be taken by the database when a user attempts to insert, update or delete a record involved in this relationship. These properties are used when Referential Integrity Triggers are generated for certain DBMSs.
The Text Description
A description of the constraint for documentation purposes. The value is not generated to schema.
Physical name
(Read only) If the name of the constraint on the database is longer than 128 characters, the value is entered by the Reverse Data Engineer from the database. In that case, the name of the constraint in the model is the first 128 characters of the physical name.