(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 offile).
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).