Table 4 Usability evaluation levels.
Availability | Comfort | ||
---|---|---|---|
Grade | Evaluation | Grade | Evaluation |
0 | Not available | A | Challenging |
1 | Difficult to use | ||
2 | By personal habits | B | Laborious |
3 | Available | C | Cozy |
4 | Very useful |
Availability | Comfort | ||
---|---|---|---|
Grade | Evaluation | Grade | Evaluation |
0 | Not available | A | Challenging |
1 | Difficult to use | ||
2 | By personal habits | B | Laborious |
3 | Available | C | Cozy |
4 | Very useful |