The appointment item display in Figure 26 has the same data fields as the appointment scheduling dialog shown in Figure 6. The item display differs from the scheduling dialog as follows: a. there is a time and date summary in the item display, just below the window banner; b. the command buttons at the bottom of the item display are different than in the scheduling dialog. The left and right arrow buttons at the top of the display are used to view the previous and next scheduled item, as described further in Section 2.3.2. The most important difference between the item-level display and the corresponding scheduling dialog are the command buttons along the bottom of the display window. Specifically, the scheduling dialog has `OK', `Clear', and `Cancel' buttons. In the item display, the buttons are `Change', `Delete', and `Clear'.