Sometimes it is easier to define values we don't want matched than it is to define those we do. In the example shown above in Exclusionary Logic Using Negated Value, a maxCargoWeight is assigned when aircraftType is not a 747. But, what would you write in the Conditions cell if you want to specify any aircraftType other than those specified in any of the other Conditions cells? For this, you use a special term in the Operator Vocabulary named other, shown in the following figure:

Figure 1. Literal term other in the Operator Vocabulary

The term other provides a simple way of specifying any value other than any of those specified in other cells of the same Conditions row.  The following figure illustrates how you can use other in the example.

Figure 2. Rulesheet using other in a Condition cell

Here, a new rule (column 4) was added that assigns a maxCargoWeight of 50000 to any aircraftType other than the specific values identified in the cells in Condition row a (for example, a 727 ). The Rulesheet is now complete because all possible condition-action combinations are explicitly defined by columns in the decision table.