Video and slides synchronized, mp3 and slide download available at URL http://bit.ly/1HL5PIP. Matt Wynne presents unwanted patterns one can recognize from his own team, and provides insight on how to fix them. Filmed at qconlondon.com. Matt Wynne is the lead developer for Cucumber, the popular Open-Source acceptance testing tool. He’s the author of The Cucumber Book, and in 2013 he cofounded Cucumber Limited with Aslak Hellesøy and Julien Biezemans.

1. HOW BDD CAN SAVE AGILE
@mattwynne | QCon 2015 | London

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4. Does agile really need
saving?

5. Scrum != Agile

6. Quality
Communication
Predictability

7. Technical discipline
Collaboration
Small pieces

8. How does BDD help?

9. Individuals and Interactions
over
Processes and Tools

10. BDD is a tool
or maybe even a process, I dunno…
but…

11. BDD is a tool that
facilitates interactions
between individuals

12. BDD is a label
but

13. I don’t like labels

14. Let’s talk about
behaviour instead

15. BDD practitioners
explore, discover, define,
then drive out
the desired behaviour of software
using
conversations, concrete
examples and automated
tests.

16. Explore Discover Define Drive out

17. Conversations
Concrete examples
Test-driven development

18. CONVERSATIONS

19. SOFTWARE IS MADE BY
PEOPLE
CONVERSATIONS MATTER BECAUSE

20. IGNORANCE IS THE
BOTTLENECK
CONVERSATIONS MATTER BECAUSE

21. Discovery
Workshop
Stories Examples
Shared
understanding
Smaller
stories
Questions
Business rules

22. EVERYONE HAS A
UNIQUE PERSPECTIVE
CONVERSATIONS MATTER BECAUSE

23. CONCRETE
EXAMPLES

24. MAKE SENSE TO
EVERYONE
CONCRETE EXAMPLES

25. ROOTED IN THE
PROBLEM DOMAIN
CONCRETE EXAMPLES ARE

26. Problem
Domain
Solution
Domain

27. HELP BUILD A
UBIQUITOUS LANGUAGE
CONCRETE EXAMPLES PROVIDE

28. A SHARED SOURCE OF
TRUTH
CONCRETE EXAMPLES PROVIDE

29. SPLIT STORIES INTO
SMALL PIECES
CONCRETE EXAMPLES HELP YOU TO

30. TEST-DRIVEN
DEVELOPMENT

31. WARNING LIGHTS
AUTOMATED TESTS ARE YOUR

32. REFACTORING
THE BIT OF TDD THAT EVERYONE FORGETS IS

35. You can't have clean code
without refactoring
You can't refactor without
good automated tests
You can't stay agile without
clean code

36. WHY?
TDD FORCES YOU TO ASK

37. LISTENING TO THE
TESTS
BUT YOU WILL FAIL UNLESS YOU ARE

38. NO SHORT CUTS:
EXCELLENT
COMMUNICATION
EXCELLENT CODE

39. @mattwynne
matt@cucumber.pro
THANKS.

40. Watch the video with slide synchronization on
InfoQ.com!
http://www.infoq.com/presentations/bdd-
agile-patterns