Description of the illustration rddtmov2.gif

This figure shows a Decision Table with the Driver.age condition moved from position C1 to C3. The conditions are now as follows in order from top to bottom: C1 Driver.eye_test, C2 Driver.has_training, and C3 Driver.age where Driver.eye_test is now the root of the tree. Now, there are three values shown for Driver.eye_test (pass, fail, glasses_required). Below each Driver.eye_test value, there are two Driver.has_training values (true and false). Below each Driver.has_training value, there are two Driver.age values (less than 20 and greater than or equal to 20).