Table 4.
Frequency of usability problems identified in think- aloud evaluation and their intensity by task
| Task | Total Number of Problems | Mean severity | Severity | Examples of Catastrophe and Major Problems for Each Task | |||
|---|---|---|---|---|---|---|---|
| Cosmetic | Minor | Major | Catastrophic | ||||
| Task 1 | 6 | 1/8 | - | 4 | 2 | - |
• Repeating the selection of the No option for healthy children and Yes for unhealthy children • Incorrect treatment recommendations, such as quick referral when choosing Yes to questions • Placing information on multiple pages |
| Task 2 | 5 | 2/6 | - | 1 | 2 | 2 |
• Improper treatment recommendations When choosing an answer Yes to the question of whether the patient has severe jaundice • Providing the same treatment recommendations for all ages instead of age-appropriate recommendations • Placing information on multiple pages |
| Task 3 | 6 | 3/3 | - | - | 1 | 5 |
• Placing information on multiple pages • Asking general questions for this type of care |
| Task 4 | 8 | 3/1 | - | - | 2 | 6 |
• Failure to provide a warning when answering a question incorrectly • Asking general questions about this type of care • Placing information on multiple pages |
| Task 5 | 9 | 2/9 | - | - | 4 | 5 |
• Determining the time for recording information and not recording information after that period • Asking general questions of parents regarding this care placing information on multiple pages |
| Task 6 | 9 | 2/6 | 1 | 1 | 3 | 4 |
• Improper diagnosis and treatment recommendations such as "child with nutritional problems and the need for follow-up" if you choose to consume breast milk with formula • Displaying the same treatment recommendations for all ages instead of age-appropriate recommendations • Determining an inappropriate follow-up date |
| Task 7 | 8 | 2/3 | 1 | 3 | 1 | 3 | • Determining the follow-up date if the patient does not have vision problems |
| Task 8 | 6 | 2/5 | - | 1 | 4 | 1 |
• providing the same treatment recommendations for all ages • Asking general questions of parents regarding this care |
| Task 9 | 4 | 3/2 | - | - | 1 | 3 |
• Recording information on vaccination at birth • Recording vaccination information in two parts: action and service provision • Determination of inappropriate follow-up date |
| Task 10 | 7 | 2/8 | - | 1 | 3 | 3 |
• Asking inappropriate questions to determine the child's status when receiving a medication supplement • Recording drug supplements on a separate page in the drug registration section • Determining the time for recording information and not recording information after that time |
| Total (%) | 68(100) | 2.71 | 2(2/9) | 11(16/2) | 23(33/8) | 32(47/1) | |