!!! For the demo purposes of ViDI there was a set of videos in the presentation. You can see the full demo video here: http://youtu.be/EtdkcNBJAec Modern software development sees code review as a crucial part of the process, because not only does it facilitate the sharing of knowledge about the system at hand, but it may also lead to the early detection of defects, ultimately improving the quality of the produced software. Although supported by numerous approaches and tools, code review is still in its infancy, and indeed researchers have pointed out a number of shortcomings in the state of the art. We present a critical analysis of the state of the art of code review tools and techniques, extracting a set of desired features that code review tools should possess. We then present our vision and initial implementation of a novel code review approach named Visual Design Inspection (ViDI), illustrated through a set of usage scenarios. ViDI is based on a combination of visualization techniques, design heuristics, and static code analysis techniques.

1. Code Review: Veni, ViDI, Vici
Yuriy Tymchuk, Andrea Mocci and Michele Lanza
REVEAL @ Faculty of Informatics – University of Lugano, Switzerland

3. Code review of future
Code Review
of Future

4. What do
reviewers expect?
What do
tools provide?

5. What do
reviewers expect?
What do
reviewers expect?

6. What do
reviewers expect?

7. What do
reviewers expect?
Find defects

8. What do
reviewers expect?
Find defects
Improve code

9. What do
reviewers expect?
Find defects
Improve code
Find alternative
solutions

10. What do
reviewers have
problems with?

11. What do
reviewers have
problems with?

12. What do
reviewers do
when they don’t
understand?

13. What do
reviewers do
when they don’t
understand?

14. What do
tools provide?

15. What do
tools provide?
CODEFLOW COLLABORATOR
CRUCIBLE PHABRICATOR
GERRIT GITHUB
REVIEW BOARD UPSOURCE

16. What do
tools provide
for diff view?

17. What do
tools provide
for code
commenting?

18. What do
tools provide
for automated
quality analysis?

19. What do
tools provide
for reviewer
selection?

20. What do
tools provide
for code
navigation?

21. What do
tools provide?

22. What do
tools provide?

29. Visual Design Inspection

31. Package
Class
Method

32. Package
Class
Method
Less Violations

33. Package
Class
Method
More Violations
Less Violations

35. SmallLint Violations

36. SmallLint Violations
115 Rules

37. SmallLint Violations
115 Rules
7 Groups

39. Static Analysis
Rules

40. Main View & System Summary

41. Selected Entity
Critics
&
Source Code

42. Filtering

43. Fixing

44. Auto-Fixing

45. Dedicated Fixing UI

46. Comments on Entities

47. Code Review

48. Code ReviewReview (Code Review)

49. Review (Code Review)

50. v3: issues / months ≈ issues/day2390 13 6
v4: issues / months ≈ issues/day1200 9 4.5ViDI

51. v3: issues / months ≈ issues/day2390 13 6
v4: issues / months ≈ issues/day1200 9 4.5ViDI
immersive
visual inspector
augmented
with critics
edit system
in-place
automated "xes dedicated
"xing tools
annotate entities review of the
review session

52. v3: issues / months ≈ issues/day2390 13 6
v4: issues / months ≈ issues/day1200 9 4.5
ViDI
immersive
visual inspector
augmented
with critics
edit system
in-place

53. v3: issues / months ≈ issues/day2390 13 6
v4: issues / months ≈ issues/day1200 9 4.5ViDI
immersive
visual inspector
augmented
with critics
edit system
in-place
automated "xes dedicated
"xing tools
annotate entities review of the
review session

54. v3: issues / months ≈ issues/day2390 13 6
v4: issues / months ≈ issues/day1200 9 4.5ViDI
immersive
visual inspector
augmented
with critics
edit system
in-place
automated "xes dedicated
"xing tools
annotate entities review of the
review session

55. self -"xing custom "x tools

56. self -"xing custom "x tools
gradual

57. self -"xing custom "x tools
gradual adjustable

58. self -"xing custom "x tools
gradual adjustable composite

59. self -"xing custom "x tools
gradual adjustable composite much more
• • •

60. ViDI
Yuriy Tymchuk, Andrea Mocci and Michele Lanza
REVEAL @ Faculty of Informatics – University of Lugano, Switzerland
Veni ViciCode Review: , ,

61. Yuriy Tymchuk, Andrea Mocci and Michele Lanza
REVEAL @ Faculty of Informatics – University of Lugano, Switzerland
ViDIVeni Vici
Code Review:

62. Yuriy Tymchuk, Andrea Mocci and Michele Lanza
REVEAL @ Faculty of Informatics – University of Lugano, Switzerland
ViDIVeni Vici
Code Review: