Chapter 7 Working with Decision Tables : Validating Decision Tables

Validating Decision Tables
Validate the decision table before testing or committing it to RMS. To validate, from the Table menu, select Validate. You can also validate a decision table from Project Explorer. Right-click on the decision table and select Validate. If there are any access control violations or syntax errors in the tables, they are shown in the Problems View tab at the bottom of the application. Take any needed corrective actions and then validate the table again until all errors are resolved.
NullPointerExceptions are silently ignored and occur because you passed a null String to a function that does not check for null, or because you accessed a property of a null contained concept (parent.child.property and child is null).
If a condition table cell is empty, it is skipped and thus considered to be evaluated as true.