One day you're going to wake up and find your little startup ain't so little anymore. You don't all know each other's names. You don't know what everyone is working on. The company is no longer a team, it is a collection of teams and each of the teams has its own purpose and goals. It's a community. How do we align these teams to build solutions to problems larger than any one team can handle? How do we maintain that solution? In this talk Paul discusses InnerSource, the application of Open Source best practice inside the enterprise, as a means to build bigger projects across team boundaries.

1. Adopting Open Source Best
Practice for the Enterprise
Paul Adams, Zalando
Berlin | November 20 - 21, 2018

2. INNERSOURCE
ADOPTING OPEN SOURCE BEST
PRACTICE FOR THE ENTERPRISE
DR. PAUL J. ADAMS
20/21-11-2018

3. PART I
I Should Probably Start By Explaining Open Source. You Know,
Just In Case. Yes, I’m Aware It’s The 21st Century.

4. 4
OPEN SOURCE IS THE FREEDOM TO:
Run a program for
any purpose
Redistribute copies
Improve a program
and to distribute the
improvements
Study how a program
works and change it to
do what you wish

5. 5
OPEN SOURCE != ANARCHY

6. 6
SOURCE “STUFF”
LICENSE
DOCUMENTATION
ISSUES
and....
COORDINATED
DECENTRALIZED
ASYNCHRONOUS
OPEN
ASSETS PROCESS

7. 7
DECENTRALIZED,
ASYNCHRONOUS PROCESS FOR
OPEN COORDINATION

8. 8
Project
IDEA
BUG
CODE
Code
Issues
Tasks
Maintainers
RELEASE

9. “Empowerment of individuals is a key part of what makes open
source work, since in the end, innovations tend to come from
small groups, not from large, structured efforts”
Tim O’Reilly

10. 10

11. PART II
That’s All Very Interesting, But You Told Us This Was About
InnerSource, Paul.

12. 12
DECENTRALIZED,
ASYNCHRONOUS PROCESS FOR
OPEN COORDINATION...

13. 13
...INSIDE YOUR ORGANISATION

14. PART III
Come On! Nobody Really Does This. Right?

15. 15
ZALANDO AT A GLANCE
~ 4.5billion EUR
revenue 2017
> 200
million
visits
per
month
> 15,000
employees in
Europe
80%
of visits via
mobile devices
> 25
million
active customers
> 300,000
product choices
~ 2,000
brands
17
countries
as at September 2018

16. 16
WE ARE CONSTANTLY INNOVATING TECHNOLOGY
HOME-BREWED,
CUTTING-EDGE
& SCALABLE
technology solutions
> 2,000
employees
international
tech locations8
HQs
in Berlin
help our brand to
WIN ONLINE

17. 17
RADICAL AGILITY

18. PART IIIa
ENGINEERING LEADS, TAKE NOTE!

19. 19
?
- Engineering is knowledge work!
Allow your engineers to think.
- Diversity really matters!
- Helps build better solutions:
concept, execution
YEAH, BUT WHY INNERSOURCE, THEN?

20. 20
YEAAAAAAH...
- No: protectionism
- No: hierarchical thinking
- No: efficiency at all costs

21. PART IV
So What Does Best Practice Look Like?

22. 22
Share That Code. Share Those
Docs. Share That Nice Artwork.
Share...

23. 23
Fork It.

24. 24
IT HAPPENS, EVEN THOUGH IT IS NOT EXPLICITLY ENCOURAGED

25. 25
LOOK WHAT I DID!
In GitHub’s own words:
“Pull requests let you tell others
about changes you've pushed to a
GitHub repository.”
- After the fact
- “Let” is weak
- “others”?
“Acupuncture” by Petras Gagllas (https://flic.kr/p/iJoBE8)

26. 26
AN ASYNCHRONOUS FORM OF
COMMUNICATION DESIGNED TO
COLLECT ALL INFORMATION
RELATED TO THE DEVELOPMENT
OF A SPECIFIC FEATURE

27. 27
THE “ERR… I GUESS I KNOW WHAT HAPPENED HERE” PR

28. 28
THE “NOT TOO BAD AT ALL” PR

29. 29
(Absolute) Unit Tests

30. 30
UNIT TESTS ARE A FORM OF COMMUNICATION
Unit Tests are a great way for
maintainers to communicate the
intent of their code
A comprehensive set of simple
and focused tests can tell
contributor a lot!

31. 31
‘Nuff Said.

32. PART V
Where Can We Learn More?

33. 33
THE O’REILLY BOOK
Of Course There Is An O’Reilly Book!
(Or Two)...
- “Getting Started with InnerSource”
- “Adopting InnerSource”

34. 34

35. 35

36. 36

37. DR. PAUL J. ADAMS
paul.adams@zalando.de
https://opensource.zalando.com
@therealpadams: Github, Twitter
20/21-11-2018
TECHNOLOGY GOVERNANCE
OPEN SOURCE LEAD