3. CR-A BR-1
C1 C4
C1 C4 CR-B
C2 C5
C3 C6 CR-B
C2 C3 C5 C6

4. Fixed
30%
Not Fixed
55%
Fixed
(Duplicate)
15%

6. 11
Low Entropy High Entropy
3 3 3 3 3
1 1 1 1
U1 U2 U3 U4 U5 U1 U2 U3 U4 U5

7. Low High
Very
Med.
Low

8. 40%
27%
20%
13%
Isolated Moderate High Skew

10. Low High
Very
Med.
Low

11. 80% of bugs are ranked high by developers
16% of these bugs are never fixed
Fixed bugs take 52% more time than “low” priority bugs
1,680 hours
1,104 hours
High priority Low priority
(Isolated Region) (across all regions)

12. 16%
9.5% 9%
6%
Isolated Moderate High Skew

14. 2,279
20
1,296
9
Low Entropy High Entropy
Low Entropy High Entropy

15. 4,993 5,063
4,032
1,608
Isolated Moderate High Skew

16. 67
20 22
9
Isolated Moderate High Skew

18. Low High
Very
Med.
Low