Knowing the bigger picture of your product development is important information to a software tester. Bram and I show you by the example of brewing beer how important this is. As a result the beer Breyk was launched at the Agile Testing Days 2016 and was welcomed with a rating of 4 (out of 5) in untappd.

1. Brewing The agile way
Eddy Bruin
A story about beer development and tasting
Bram Bronneberg

2. Eddy Bruin Bram Bronneberg

3. Once upon a time…

4. The perfect beer for ATD

5. Where to start? Market research!

6. Checking the basics

7. What type of beers?
Altbier
Berliner Weisse
Bock
Dampfbier
Doppelbock
Dunkel
Eisbock
Gose
Helles
Kellerbier
Kölsch
Kottbusser
Maibock
Malt beer
Märzen
Pilsner
Rauchbier
Roggenbier
Schwarzbier
Weissbier
Zoigl
Pilsner 68%
Weissbier 10%
Schwarzbier 2%

8. What do germans like?
Sweetspot
Between Alcohol 5,1 and 5,6%

9. So what does this all tell us?

10. So we present you!!!
<Breyk>
Type: Rye pale ale
Estimated OG: Cat. I – 1,050 (12,5⁰ P)
Estimated FG: 1,007 (2⁰ P)
Bitterness: 26 EBU/IBU
Color: EBC: 16 / SRM: 8

11. Features
≠User Experience
#1

12. Brewing The agile way
A story about beer development and tasting
A story about product development and testing

13. The brewing process
our first batch

14. Milling

15. Mashing

16. Lautering

17. Boiling

18. Cooling

19. Fermenting

20. Packaging

21. Brewing a prototype

23. Brewing a prototype
You might not need to have a
big infrastructure to test the
business value of your idea
#2

24. Testing our prototype

29. How did we test?

30. Source: Gojko Adzic
Did we look at all levels of quality?

31. Testing our prototype

32. Traditional Test Focus

34. New product?
Test business
assumptions over
functional quality
#3

35. Prototype #2 and evolution
Feedback Improvement
Lacking “nose” Reducing boiling time of hops
Strange sweetness Use different dry hops
To little carbonation Increasing bottle sugar
Lighter taste color than expected Increase the Rye content

36. • Science behind the recipe
• Calculated Bitterness
• Calculated Color
• Calculated Alcohol percentage
• Science behind the brewing
• Mashing steps
• Evaporation+purching
• Science behind the water!
Putting the craft in to craftsmanship

37. Predicting beer color

38. Predicting beer bitterness
IBUs = U% * (ALPHA% * W_OZ * 0.7489)
(V_Gal)

39. Beer brewing is
empirical and a
craftsmanship that
NOT just everybody
can do
#4

40. The Final Batch
x 40
Maintainability Compliancy

41. Context can
change quality
expectations
#5

42. What can testers learn from brewing beer?
Features ≠ User Experience
The user’s experience will lead to success or failure
You might not need to have a big infrastructure to test the business value of your idea
Find out if you need to integrate with a big infrastructure from the beginning
New product? Test business assumptions over functional quality
Determine what makes the project a success and test for this first
Beer brewing/Testing is empirical and a craftsmanship that NOT just everybody can do
From repetition and experimentation one gains mastery
Context can change quality expectations
Not all quality attriubutes are equally important in a certain point of time

43. Big thanks to …

44. <Br>eaking <Br>ewery

46. Hey, we just met you
And this is crazy
So here’s our twitter
So tweet us maybe?!
@eddybruin
eddy@loopforward.nl
bram.bronneberg@polteq.com
@brambronneberg