The results of any entry should be compatible with user expectations, so that the system changes in a 'natural' way in response to user actions.
Additional Information:
The result of an entry should be consistent with the user's view of the system. For example, a control entry of NEXT PAGE should show the next frame of a current display, and should not jump off to some other internally defined 'page' in the computer's database. When the completion of a control entry is indicated by a special function key, that key should be labeled ENTER (or some functionally equivalent word) and should result in computer acknowledgment of the entry.