2.2.2.6-3 Consistent Coding of Menu Options

If letter codes are used for menu selection, those letters should be consistently used in designating options from one transaction to another.

Additional Information:
Different codes for the same action will tend to confuse users and impede learning. The same code for different actions will tend to induce user errors, especially if those actions are frequently taken. However, this practice may be tolerable when selections are seldom taken, and then always taken from labeled alternatives. The same action should not be given different names (and hence different codes) at different places in a transaction sequence, such as f = Forward and n = Next. The same code should not be given to different actions, e.g., q = Quit and q = Queue.