Prototype Evaluation

Rapid Iterative Testing and Evaluation(RITE)

1. Participants:  Housewife and office workers who care for their health.

Results

2. Tasks result: 

Benchmark Task 1 (Mean time)

1) 20.6 sec
2) 20.6 sec
3) 11.2 sec

Benchmark Task 2 (Mean time)
1) 14 sec
2) 11.6 sec

3. The Usefulness, Satisfaction, and Ease of use Questionnaire: (Mean rating)

Strongly agree 5 <-> 1 Strongly disagree

1. It helps me be more effective. (4.4)
2. It helps me to develop healthy eating habits. (4.2)
3. It makes the things I want to accomplish easier to get done. (4.6)
4. It is simple to use. (4.8)
5. It is user-friendly. (4.6)
6. It requires the fewest steps possible to accomplish what I want to do with it. (4.8)
7. I can use it without written instructions. (4.0)
8. I learned to use it quickly. (5.0)
9. I easily remember how to use it. (5.0)
10.  I could intuitively recognize my intakes and body condition (4.4)
11.  I like the shape of the accessory. (4.4)

12.  I would recommend it to a friend. (4.8)

Total: 4.58/5

4. I collected qualitative user behavior data using think aloud method.

5.Problems identified:

(1) 화질이 좋지 않아 글자를 인식하는 데 어려움이 있었다. 

->그림 윤곽을 볼펜으로 진하게 칠하기로 하였다.

(2) 사용자의 신체 정보를 어디서 입력해야 하는지 고민하는 경우가 있었다.  

->알아보기 쉽게 'User Info'에서 'Setting Body Information' 으로 표지를 바꿨다. 

(3) 지금 먹고있는 식사 정보를 어떻게 입력해야 하는지에 대한 지시가 부족했다.

-> 'Record'라는 말로는 부족하다고 판단하여  ‘Meal Snapshot’ 으로 변경하였다.

(4) Recommendation 단계에서 'Back'버튼이 작동하지 않았다. 

-> 수정완료.