Table 2 A GOMS analysis for 4 tasks and their subtask

1

Locating the patient

step 1 Retrieve the name of the patient [M]

step 2 Extend the mouse to the patient name [P]

step 3 Click on the located patient name [P]

step 4 Extend the mouse to “Oral examination” button [P]

step 5 Click on“Oral examination” button [P]

2

Enter chief complaint

step 1 Think of location in main menu [M]

step 2 Extend hand towards mouse and go to chief complaint menu [P]

step 3 Click on the chief complaint menu [P]

step 4 Retrieve the patient's chief complaint [M]

step 5 Type the patient's chief complaint [P]

step 6 Extend hand towards mouse and go to save button [P]

step 7 Click on save button [P]

step 8 Extend hand towards mouse and go to back button [P]

step 9 Click on back button and go to main page [P]

3

Document coding of tooth status

step 1 Retrieve the data of tooth [M]

step 2 Extend hand towards mouse and go to tooth number button/select tooth number [P]

step 3 Click on tooth number button [P]

step 4 Search for coding of tooth status/ select tooth options [M]

step 5 Extend hand towards mouse and go to coding of tooth status button/select tooth status [P]

step 6 Click on tooth status [P]

step 7 Review coding of tooth status [M]

step 8 Click on coding of tooth status [P]

step 9 Extend hand towards mouse and go to back button [P]

step 10 Click on back button and go to main page [P]

4

Save the data

step 1 Review all of tooth status [M]

step 2 Extend hand towards mouse and go to save button [P]

step 3 Click on save button [P]