(Card, Moran, and Newell, 1983, p. 144) (press up-arrow key, move hand to mouse, recall file name, verify that the cursor is at end of file).
Finally, users achieve their goals by using methods (move cursor to desired loca-
tion by following a sequence of arrow keys). The selection rules are the control
structures for choosing between the several methods available for accomplish-
ing a goal (delete by repeated backspace versus delete by selecting a region and
pressing the Delete button).