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Table 5 Quantitative results of the feasibility study of the Web DUE technique

From: Using an empirical study to evaluate the feasibility of a new usability inspection technique for paper based prototypes of web applications

 

Group

 

Web DUE

WDP

Subject

1

2

3

4

5

6

7

8

HCI experience

M

L

L

H

L

L

H

M

Inspections

L

L

L

L

L

L

L

H

Design

L

M

L

H

L

M

M

L

Time spent (min)

100

67

200

160

147

132

124

279

Total discrepancies

38

23

27

22

12

33

9

30

False positives

19

2

5

4

1

5

0

8

Total defects

19

21

22

18

11

28

9

22

Effectiveness (%)

24.05

26.58

27.85

22.78

13.92

35.44

11.39

27.85

Efficiency (Defects per hour)

11.40

18.81

6.60

6.75

4.49

12.73

4.35

4.73

Average effectiveness (%)

25.32

22.15

Average efficiency (Defects per hour)

10.89

6.58