The document discusses problems with developer and tester collaboration such as trade-offs between speed, scope and quality. It proposes solutions like testers providing checklists to guide developers and collaborating more closely throughout the development process. Some obstacles to effective collaboration are changing mindsets, building trust between roles, and lack of shared understanding around quality responsibility. With improved collaboration over time through checklists and other means, teams can deliver high quality software faster.

1. 1
VIA BUILDING EFFECTIVE
DEVELOPER & TESTER
COLLABORATION
HOÀNG LIÊN SƠN
TESTING VN Co., ltd
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2. Today’s Topics
• Problems
– Trade-off
– Misunderstand about Quality Responsibility
• Solutions
– Developer and Tester Collaboration
• Obstacles
– Changing Mindset
– Building Trust
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Trade-off

4. 4
Time
Scope Quality
(Speed,
Cost)
Trade-off Triangle

5. Testing
Development / Bugfix
Trade-off - Agile
5
Release
Time

6. Development Bugfix
Trade-off - Agile
6
Testing
Release
Time

7. Avoiding the trade-off
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Why the team can’t recognize problems
sooner?
Build it
incorrectly
test it
fix it

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Misunderstanding about Quality Responsibility

9. 9

10. 10
Quality Responsibility

11. How to solve these problems?
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Developer and Tester Collaboration

13. Testers Provide Checklist
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Situation What we do
- Developers are unclear
what needs to do to
have better quality
- Testers doesn’t have the
trust of developers yet
- Testers provide a checklist for DEV
- Testers and managers need to send
a clear message that: Complete the
checklist is a critical task of DEV.

14. Testers advise DEV on Creating Checklist
14
Situation What we do
- Developers familiar with
checklist
- Developers and testers
understand DEV’s habits
and common mistakes
- Dev creates checklist
- Testers guides/supervises to
produce checklist
- Manager and team leads support
to provide sufficient time for
developers to be able to learn

15. Improve Checklist
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Situation What we do
- Developers know what
is a standard checklist,
and how to apply it on
implementation
- Developers has a sense
of quality responsibility
- Start adding more edge cases we
found during requirement analysis.
The sooner developers know it the
better quality we got
- Testers show developers how we
explore the requirement
- Knowing the fact that now
developers can cover most of basic
cases.

16. Sharing Technical Risks in Checklist
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Situation What we do
- Developers and Testers
trust to each other
- Developers and Testers
start discussing the
requirements and
technical
- Testers know internal
logic, and technical of
implementation
- Testers and developers sit together,
Testers give risks base on the
implementation solution that DEV
shared
- Checklist now become a document
which needs to update frequently
- The checklist is updated when DEV
change the solution or Testers
revise new issue/theory

17. End of Story
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- Testers understand deeply about product, that will
keep them on tinkering and imrpove their skill greatly
- Dev can built a product which have high quality right
from the start
- We can ship product faster and more quality

18. Week in the Life of a Tester
18
40%
35%
25%
For Customers For Teams For Tetsters

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Obstacles

20. Obstacle 1 – Mindset &
Expectations
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Management Customers
DevelopersTesters

21. Obstacle 2 – Communication
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22. Obstacle 3 – Building trust
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23. Atlassian Result Timeline
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100%
30%
15%
7% 4%
0%
20%
40%
60%
80%
100%
2009 2011 2013 2014 2015
Story Rejection Rate
Source: Atlassian
It takes significant time and effort to achieve this result

24. Takeaways
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 Software quality comes from
implementation, not testing
 Developers and Tester united we
stand, divided we fall
 It takes time and effort to achieve
this result

25. © 2016 HCMC Software Testing Club
Q&A

26. References
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– https://atlassian.com
– http://opensecurityarchitecture.org
– http://syncotek.en.alibaba.com
– http://tes.com
– http://news.vanderbilt.edu
– http://advice.milkround.com
– http://customergroup.com
– http://syncotek.en.alibaba.com
– http://blog.smartbear.com/
– http://mystarjob.com/