BlaBlaCar's Product Design Team went from 1 to 10 persons the last 2 years. In this presentation, I've explained how we adopted and tweaked the Double-Diamond design process for all our projects.

1. Design Process at BlaBlaCar
Julien Pelletier - @jupelletier

2. Julien P, 31 ans

5. Design process

7. https://dribbble.com/monstercritic

8. Why a design process?
Progress
Switch
Set clear expectactions
Convince!

9. DISCOVER
the user point of view
DEFINE
the problem to solve
DEVELOP
the options to consider
DELIVER
the right solution
Understand the problem Solve the problem

10. Divergence
DivergenceConvergence
Convergence

11. Senior Junior

12. Data analysis
Flow analysis
Stakeholder input
Member voice
User feedback database
User testing
User scenario
Design Principles
User stories
Red routes
A/B testing
POC
How Might We Questions
Architecture map
Brainstorm
Benchmark
Card sorting
Sketching
Wireframing
Prototyping
KPIs
MVP
Stakeholder feedback
Survey
User observation
Card sorting
External studies
…

14. DISCOVER
the user point of view

15. “There are a lot of flies in
my house. They’re so
annoying, I want to get
rid of them.”
Clara Simon
30 years old
Testimonial

16. Survey
5% 10% 12% 53% 20%
source: fictional
On a scale from 1 to 5,
how much do flies annoy
you?
ExtremelyVeryJust a bit
Not that
muchNot at all

17. Data
17 quadrillon
number of flies in the world right now
source: reddit
1 quadrillon = 1 000 000 000 000 000 000 000 000

18. Existing flow user test
All our users tried to
kill the flies with their
bare hands with a
10% success rate.

19. DEFINE
the problem to solve

20. “Flies are annoying
because they’re loud
and, even worse,
because they’re attracted
to people.”
Clara Simon
30 years old
User interviews

21. “How Might We” Questions
How might we help people get rid of flies more
easily?

22. Success criteria
● 3 out of 4 users report that flies are not very
or not annoying at all.
● Success rate of the solution > 50%

23. DEVELOP
the options to consider

24. “If you have literally tried
every possible variation,
you will have come
across the best solution.”
Julie Zhuo
VP of Product Design
Facebook

25. Explorations

26. Prototyping

27. DELIVER
the right solution

28. Solution Pros Cons
Light
Flexible
Affordable
Re-usable
Safe for children
No battery needed
-
Radical
Still affordable
Need battery
Fragile
Solution comparison

29. A/B Test
Success rate improvement: +400%
10% chance
of killing a fly
50% chance
of killing a fly

30. Survey
5% 10%12% 53% 20%
source: fictional
On a scale from 1 to 5,
how much do flies annoy
you?
ExtremelyA lotJust a bit
Not that
muchNot at all

31. DISCOVER
the user point of view
DEFINE
the problem to solve
DEVELOP
the options to consider
DELIVER
the right solution
Testimonial
Survey
Data
Existing flow user test
User inteviews
How Might We question
Success Criteria
Exploration mockups
Prototyping
Solution comparision
User test
Survey

32. Questions?
Oh, and we’re hiring :)