A rule's priority setting determines the order in which rules are applied. To assign priority to a rule, select Edit > Properties and select the General Tab. If several rules apply to the source and target items, the software selects the rule with the highest priority to control placement. When you create a relationship, if several rules apply to the source and target items, the software instructs the highest priority rule to copy property values first. Then, each of the other applicable rules copies unpopulated property values in order of priority.
Additionally, you can prevent the software from creating a relationship that a rule describes. For example, you can create an exception to a rule by specifying filters for Item 1 and Item 2 on the Items Tab. Selecting the Prohibit check box on the General Tab prohibits a relationship between the two items that you defined. The Prohibit check box works for freestanding placement as well as placement on a target.
A nozzle cannot be set in a rule as the owner of another nozzle. Doing this causes
a constraint violation and results in orphaned nozzle objects in the database.