Using OTHER in rules

This decision table does not handle all possible combinations of values:

How should we deal with this?

Method 1 Add explicit rules for the missing combinations based on suggestions from the validation engine:

This method is a bit more work but has the advantage that you can be very specific about the reasons why group did not get assigned.

Method 2 Use the keyword OTHER to represent anything missing:

This method is convenient if you just need more general explanations of why the group did not get assigned

Method 3 Set a default value for group

This is simplest, but the disadvantage of this approach is it gives no information about why the group was not assigned