The slides presented on SrumGathering Shanghai 2011

2. Email: lidingshan@gmail.com
Blog: http://www.agileinone.net/
Twitter: @lidingshan

3. I am a …

4. And I am supposed to …

5. My enemy is …

6. The first challenge is …

7. The second one is …

8. A Story

9. A COOL Product Team

10. We heard a lot about …

12. Survey & Interview
In which stage, did
you feel there were
significant waiting
If you could do
anything, please tell
ONE thing that you
want to improve

14. Value Stream for Check-in procedure
Each Dev will has
What will happen
a different build
if there were
version in the
conflicts after
queue that wait
code sync?
for test
Change Test on Sync Install
Local Build Check-In
Codes Test Farm Codes Build
2 hr. 6 hr.
2 days
12 hrs. ?
The team will get the feedback after 3~4 days
when complete some codes update

15. There were huge waste on …
Averagely there will be about 1.5 hours wasted in
each working day for each developer

16. • Productivity
• Quality
• Team Motivation

17. We must convince the BOSS to …

18. We tell boss that …
Average Wasted Time / Per Day / Per 1.5 hours
Dev
Total Wasted Time for Team / Per Day 70 * 1.5 = 105 hours
Total Wasted Time for the Team in 105 * 20 * 10
One Release (about 10 months) = 21,000 hours
= 131 man month
Average Cost / Per Man Month $$$$$
Total Wasted Money…

19. Proposed solution …
High Refactor legacy High
system and
automation test cases
Cost of Change
Optimize
Improve Quality
integration
process
Increase test farm
performance
Increase team’s
machine performance
Low Low
Low Improve Productivity High

20. Estimated Return of H/W Investment
Waste time Productivity
Can save about USD $$$$$$ in ONE release

21. Half a Year Later …

23. Total test time for retrieval Average test time / per case
tests for retrieval tests
80000.00 1500.00
Time (sec.)
Time (sec.)
60000.00 1000.00
40000.00
20000.00 500.00
0.00 0.00
New Old New Old
Farm Farm Farm Farm
Series1 28876.37 68501.59 Series1 437.52 1037.90
Productivity Increase: 57.9%

24. total test time for smoke test average test time / per test
60000.00 case for smoke test
Time (sec.)
40000.00 150.00
Time (sec.)
100.00
20000.00
50.00
0.00 0.00
New Old New Old
Farm Fram Farm Farm
Series1 33585.04 51436.06 Series1 89.32 136.80
Productivity Increase: 34.7%

25. Average Time of Complete Build(mins.)
160
140
120
100
80
60
40
20
0
New Workstation Old PC
Average Time of
Complete 50 150
Build(mins.)
Productivity Increase: 66.7%

26. • Quality
• Team Motivation

28. 1st learning is …

29. So, don’t just complain but …

30. 2nd learning is …

31. It is NOT the END …

32. Code base is growing bigger & bigger

33. Next …
High Refactor legacy High
system and
automation test cases
Cost of Change
Optimize
Improve Quality
integration
process
Increase test farm
performance
Increase team’s
machine performance
Low Low
Low Improve Productivity High