Example of Assignment Rules

The order of the tests is assignment rules, priority, class and finally element discipline, the testing process is as follows:

1. The assignment rules are applied, the first rule in which all rule expressions evaluate true is used to determine the owner discipline.

2. If no assignment rule is satisfied, the classes of the elements are checked. If the classes are different, the element with the higher class determines the owner discipline. (The illustration shows this test disabled, because the check box is unchecked.)

3. If the classes are the same, if the priorities of the clashing elements are different, the element with the higher priority determines the owner discipline. (The illustration shows this test disabled, because the check box is unchecked).

4. If the priorities are the same, the element disciplines are checked. If the disciplines are different, the default discipline, typically UNALLOCATED becomes the owner discipline. Otherwise, the discipline common to both elements becomes the owner.

   Note:
   It is useful to apply the tests, even if the discipline of both clashing elements is the same, because the owner discipline highlighted in the Clash Report may well represent the element that must be moved to resolve the clash, based on the relative priorities or classes of the elements.