Disable the Not Applicable Check Box

In some cases, you might want to disable the Not Applicable check box (which appears on each tab of the Risk Matrix) so that Risk Matrix users cannot select it. For example, your company might have a policy that requires risk to always be evaluated rather than allowing people to bypass the risk assessment process.

Note: The process of disabling the Not Applicable check box requires you to create a disabled rule on the Not Applicable field in the Risk Rank family. Because this field is used to display the Not Applicable check box on all tabs of all Risk Matrices, it will be disabled everywhere that any Risk Matrix is displayed.

Steps

Using the Rules editor, in the Risk Rank family, create a disabled rule on the Not Applicable field. You can create the rule such that the check box is always disabled, or you can create a more complex rule that causes the check box to become disabled only under certain conditions (e.g., after the risk rank is set to anything higher than 100).
Save the family.
Compile the family.

The Not Applicable check box will now be disabled on all tabs of all Risk Matrices.