Define a relationship from one entity to another with a relation entity.
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Right-click on an entity, such as a Program, and select New
Relation.
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Click and drag the Relation arrow to the entity to which you want to set the relationship, such
as a Form.
If you try to set an invalid relation, for example from a Form entity to a Program,
you
will see the constraint icon
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indicating that this relation is not valid.
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Repeat this step until all relationships have been defined.