Slides from Warm Crocodile Developer Conference in Copenhagen

1. It’s not science but you need to know
a few things

2. All the boring stuff you will forget after the slides have passed

3. • Stefan Daugaard Poulsen
• @cyberzeddk
• AP in Computer Science
• Developer/Architect at Atea Denmark
• Currently working on Atea Tele
• Been using OSS in different manners since 2001
• BSD
• Linux
• SQL
• .NET libraries
• Applications
• Document database

6. Open Source

7. What does the boss think?

8. • “We just don’t use open source”
• “Open source means free of charge software”
• “We have to use the same license model”
• “None of the big companies are doing it”
• “It is made by hippie sons,
that sit in their basement with their big beards”

10. The cultural cliff

11. • Lacking knowledge of what OSS is
• It is cheap just to say NO!
• No open source ambassador
• A dish served cold
• No team support
• A lone wolf doesn’t eat as often as the pack
• No legal department
• Is this really needed?
• Core functionalities are set as first migrators
• Small steps are a better start
• Thinks that OSS is not as secure as proprietary systems
• Are they, aren’t they?

12. • Tell him what OSS is
• Don’t do it as a lecture
• Talk about it over lunch
• Take the role as ambassador, and stick to it!
• Make sure that the team is ready
• Tell your boss about a few open source licenses
• Use the 3-layer model
• Tell him about the support options on some projects
• Start of with something non-critical to your business
• Eg. Add a logging library where there were no logging

13. Sometimes it does, but don’t always assume so

14. • Why is it assumed that open source means free?
• Open source means that the source is available
• Free means free to copy and reuse
• Does it have to be free of charge?
• Would you give everything you do away for free?
• Return of Investment

15. • Typical license models
• Dual-license
• Commercial + Open Source
• Eg. RavenDB
• Functional encapsulation
• SaaS
• Support, training and consulting
• Freemium

16. The endless jungle of OSS

17. • Simplification of the layers
• Give us credit for what we did for you
• APL, BSD, MIT
• If you fix something let us have the fix
• MPL, LGPL, CDDL
• Give us ALL THE THINGS!
• GPL

18. • Make sure you pick the right one from the get go
• Choose a loose license to have less worries in the beginning
• Many modern OSS libraries tend to go for
• Give us credit
• Give us fixes

19. • http://www.tldrlegal.com/

20. Have you tried searching with a few keywords?

21. • I do
• Private projects
• We do
• Atea
• He/She/It does
• DMI
• Cisco
• Google
• Microsoft
• BMW
• Mastercard

22. • Some do it on purpose
• Some can’t even avoid using it
• Be that political decided or not
• More and more use it

23. • 2550 responders
• Developers (52%), Architects (22%), Management level
• Organizations represented
• Apple
• Adobe
• Oracle
• Cisco
• SAP
• IBM
• Bank of America
• eBay

24. • Usage
• 34% consume only
• 66% give back in some form
• 9% even though the company policies prohibit it
• Policy
• 51% doesn’t have an OS policy
• 51% of those with a policy hates it
• Control
• 20% locked down to approved components

25. Sometimes it is…

26. • Krzysztof Koźmic
• Well-known speaker
• Good reputation in the community
• Embraced by his employer, Readify
• ~40 Contributers
• Quality markers
• Extensibility
• Ease of use
• Really helpful
• …but he does have the beard

27. • Demis Bellot
• Embraced by his employer, StackExchange
• ~100 Contributers
• Gaining in use
• Quality markers
• Mono support
• Speed
• Doesn’t have the beard :)

28. • Microsoft Open Technologies, Inc.
• The OSS branch of Microsoft
• Apache Hadoop Connector
• TypeScript Cross-Platform support
• CouchDB as a service
• Entity Framework
• ASP.NET MVC4
• WebAPI
• Node.js (Azure + Windows)
• Isn’t this corporate enough?

29. • NancyFX
• AutoFac
• RavenDB
• MongoDB
• Lucene (and Lucene.NET)
• Firefox
• Chromium
• Apache
• ALAC (Apple Lossless Audio Codec)
• Even hardware is OS
• Arduino
• Raspberry PI

30. Slow and steady

32. • Prototypes
• Helps you get started without boilerplate code
• Small internal projects
• Review a set of modules
• Build a set of verified components

33. • Why?
• Visibility
• Standardization
• Heuristics
• Improved build time for package restore
• Package managers
• NuGet
• OpenWrap
• Gems
• Etc.
• Corporate approved packages
• Internal package feed
• Local copies
• But keep up to date!!!

34. • Lock it down
• Financial, Telco, Manufacturing, Government
• Watch out it doesn’t become a negative thing
• Give guidelines and see how it goes
• Keep an eye on it
• License pit trap if not cared about
• Allow creativity to grow freely
• Who has the responsibility?
• Committee
• App Dev Management
• Legal
• Etc.

35. • Approve a set of licenses
• Fast to see if a component can be used
• Be open to exceptions
• Decide what direction you want to go
• Credit us
• Give us fixes
• Give us all

37. • NuGet
• LMGTFY
• Advice
• What are other people using?

38. It’s not only about getting streetcred

39. • Quick service
• Might be more secure due to more eyes on the projects
• Attracts better workers
• In general people that use OSS are more aware of the tech development
• Faster innovation
• jQuery
• Twitter Bootstrap
• More responsive
• Flexible, prepare for BYOD
• Prepare for the GitHub generation
• Independence

41. • Twitter: @cyberzeddk
• Blog: http://cyberzed.dk
• Email: cyberzed@sleddog.dk
• GitHub: http://github.com/cyberzed/
Feel free to contact me with any questions