Behaviour-Driven Development (BDD) is a game changer for the whole team! Behaviour Driven Development is a powerful collaboration technique that can empower teams to deliver higher value features to the business faster and more effectively. More than just a testing technique, BDD is both a collaboration and a verification tool, and a vital step on the road to Continuous Delivery.

1. Collaborate like
you mean it!
BDD in the world
of Agile 2.0

2. John
Ferguson
Smart
Introductions
“I help teams of smart people
learn to work together more efficiently,
to deliver better software faster”

3. Do you aim to build features that
delight the customer?

4. How long does it take a feature to
go from an idea to into the hands
of the users?

5. We can’t afford to wait for long dev cycles

7. Today’s market moves fast
Our delivery strategies
need to move just as fast

8. Agile helps us meet
these challenges

9. But are classic agile practices
enough?

10. The essence of BDD
Collaborate to
discover
requirements and
identify
uncertainty
Using examples at
multiple levels
And a common
language to build
a shared
understanding
To deliver
software that
matters

11. The essence of BDD
Collaborate to
discover
requirements and
identify
uncertainty
Using examples at
multiple levels
And a common
language to build
a shared
understanding
To deliver
software that
matters

12. The essence of BDD
Collaborate to
discover
requirements and
identify
uncertainty
Using examples at
multiple levels
And a common
language to build
a shared
understanding
To deliver
software that
matters

13. The essence of BDD
Collaborate to
discover
requirements and
identify
uncertainty
Using examples at
multiple levels
And a common
language to build
a shared
understanding
To deliver
software that
matters

14. The essence of BDD
Collaborate to
discover
requirements and
identify
uncertainty
Using examples at
multiple levels
And a common
language to build
a shared
understanding
To deliver
software that
matters

15. The traditional way
BA
Developer
Tester

16. The traditional way
Story
BA
Developer
Tester

17. The traditional way
Story
Working
code
BA
Developer
Tester

18. The traditional way
Story
Working
code
boring
manual
testing
BA
Developer
Tester

19. The traditional way
Story
bug reports
Working
code
boring
manual
testing
BA
Developer
Tester

20. The traditional way
Story
bug reports
Working
code
boring
manual
testing
WASTE
BA
Developer
Tester

21. The BDD way
Story

22. The BDD way
Story

23. The BDD way
Story

24. The BDD way
Story

25. The BDD way
Story
Examples

26. The BDD way
Story
Examples
Automated
acceptance
criteria

27. The BDD way
Shared
understanding
Story
Examples
Automated
acceptance
criteria

28. The BDD way
Working code
and
Working Automated
Acceptance Tests
Shared
understanding
Story
Examples
Automated
acceptance
criteria

29. The BDD way
Working code
and
Working Automated
Acceptance Tests
Exploratory
testing, usability
testing...
Shared
understanding
Story
Examples
Automated
acceptance
criteria

30. The BDD way
BA and/or product owner
Tester Developer Automatable
Acceptance
Criteria
Shared
understanding

31. The BDD way

32. Frequent Flyer Application
Goal: Encourage travellers to fly with Flying High airlines more often by
allowing them to cumulate Frequent Flyer points that they can spend on
cheaper flights.
Goals
The BDD way

33. Frequent Flyer Application
Goal: Encourage travellers to fly with Flying High airlines more often by
allowing them to cumulate Frequent Flyer points that they can spend on
cheaper flights.
Goals
Earning points
from flights
Capabilities
Earning points
from spending
with partners
Viewing points
earned
Spending
points on
bookings
The BDD way

34. Frequent Flyer Application
Goal: Encourage travellers to fly with Flying High airlines more often by
allowing them to cumulate Frequent Flyer points that they can spend on
cheaper flights.
Goals
Earning points
from flights
Capabilities
Earning points
from spending
with partners
Viewing points
earned
Spending
points on
bookings
FeaturesViewing current points balance
View points needed to
achieve the next status level
Calculating points needed
for a given destination
The BDD way

35. The BDD way

36. The BDD way

37. The BDD way

38. The BDD way

39. The BDD way

43. The BDD way

44. The BDD way

45. Collaborate like you mean it!

46. Show me the value!

47. “Don’t take my word for it”
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password

48. “Don’t take my word for it”
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Scenario: Login via LinkedIn
Scenario: Login via Twitter

49. “Don’t take my word for it”
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Scenario: Login via LinkedIn
Scenario: Login via Twitter

50. “Don’t take my word for it”
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Scenario: Login via LinkedIn
Scenario: Login via Twitter

51. “Don’t take my word for it”
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Scenario: Login via LinkedIn
Scenario: Login via Twitter
Scenario: Login via Facebook

52. “Don’t take my word for it”
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Feature: Authenticate using social media
In order to access the application more easily
As a new user
I want to authenticate using social media instead of having to provide
a username and password
Scenario: Login via LinkedIn
Scenario: Login via Twitter
Scenario: Login via Facebook

53. “Why are we building this anyway?”
Feature: Display customer details
As a user
I want to view the customer's profile details
So that I can see the personal information on the customer

54. “Why are we building this anyway?”
Feature: Display customer details
As a user
I want to view the customer's profile details
So that I can see the personal information on the customer

55. “Why are we building this anyway?”
Feature: Display customer details
As a user
I want to view the customer's profile details
So that I can see the personal information on the customer
Feature: Locate a customer
In order to propose more relevant services to my customers
As a financial adviser
I want to view a customer's profile details

56. “Why are we building this anyway?”
Feature: Display customer details
As a user
I want to view the customer's profile details
So that I can see the personal information on the customer
Feature: Locate a customer
In order to propose more relevant services to my customers
As a financial adviser
I want to view a customer's profile details
In order to propose more relevant services to my customers
What is the real
business goal?

57. “Why are we building this anyway?”
Feature: Display customer details
As a user
I want to view the customer's profile details
So that I can see the personal information on the customer
Feature: Locate a customer
In order to propose more relevant services to my customers
As a financial adviser
I want to view a customer's profile details
As a financial adviser
What is the real
business goal?
What is the context of the
user who needs this feature?

58. “Why are we building this anyway?”
Feature: Display customer details
As a user
I want to view the customer's profile details
So that I can see the personal information on the customer
Feature: Locate a customer
In order to propose more relevant services to my customers
As a financial adviser
I want to view a customer's profile details
What is the real
business goal?
What is the context of the
user who needs this feature?

59. “Having the conversation
is more important than
recording the conversation
is more important than
automating the conversation”
- Liz Keogh

60. “No shit, Sherlock!”
Scenario Outline: User tries to log on to application with invalid credentials
Given I am a registered user
When I login as <username> with password <password>
Then I should not be allowed to logon
And I should see the error message <error-message>
Examples:
| username | password | message |
| scott | | Please enter a password |
| | tiger | Please enter a username |
| scott | wrong | Invalid username or password |

61. “No shit, Sherlock!”
Scenario Outline: User tries to log on to application with invalid credentials
Given I am a registered user
When I login as <username> with password <password>
Then I should not be allowed to logon
And I should see the error message <error-message>
Examples:
| username | password | message |
| scott | | Please enter a password |
| | tiger | Please enter a username |
| scott | wrong | Invalid username or password |
OK, but what else?

62. Get everyone involved early

63. Create a Dynamic Tension

64. “How would you test this?”
Scenario: Find a customer by various criteria
Given I am logged into the application
When I click Search
Then I will see search criteria options to search for the customer
by customer name, date of birth, and account number

65. “How would you test this?”
Scenario: Find a customer by various criteria
Given I am logged into the application
When I click Search
Then I will see search criteria options to search for the customer
by customer name, date of birth, and account number

66. “How would you test this?”
Scenario: Find a customer by various criteria
Given I am logged into the application
When I click Search
Then I will see search criteria options to search for the customer
by customer name, date of birth, and account number
Scenario: Find a customer by name
Given the following customers exist:
| id | first name | last name |
| 100 | Sarah-Jane | Smith |
| 101 | Sarah | Smith |
When I search for a customer using the following search criteria:
| name | Sarah-Jane Smith |
Then I should display the following customer:
| id | first name | last name |
| 100 | Sarah-Jane | Smith |

67. “How would you test this?”
Scenario: Find a customer by various criteria
Given I am logged into the application
When I click Search
Then I will see search criteria options to search for the customer
by customer name, date of birth, and account number
Scenario: Find a customer by name
Given the following customers exist:
| id | first name | last name |
| 100 | Sarah-Jane | Smith |
| 101 | Sarah | Smith |
When I search for a customer using the following search criteria:
| name | Sarah-Jane Smith |
Then I should display the following customer:
| id | first name | last name |
| 100 | Sarah-Jane | Smith |
Well-defined inputs

68. “How would you test this?”
Scenario: Find a customer by various criteria
Given I am logged into the application
When I click Search
Then I will see search criteria options to search for the customer
by customer name, date of birth, and account number
Scenario: Find a customer by name
Given the following customers exist:
| id | first name | last name |
| 100 | Sarah-Jane | Smith |
| 101 | Sarah | Smith |
When I search for a customer using the following search criteria:
| name | Sarah-Jane Smith |
Then I should display the following customer:
| id | first name | last name |
| 100 | Sarah-Jane | Smith |
Well-defined inputs
Well-defined outcomes

69. Get up close and personal

70. Everyone is responsible for quality!

71. Communication is essential

72. Embrace Living Documentation

73. Embrace Living Documentation

74. Embrace Living Documentation

75. Embrace Living Documentation

76. Embrace Living Documentation

77. Embrace Living Documentation

78. Embrace Living Documentation

79. So why do BDD?
Delight your
customers
Reduce Waste
Deliver faster and
more reliably
Improve Visibility

80. So why do BDD?
Delight your
customers
Reduce Waste
Deliver faster and
more reliably
Improve Visibility

81. So why do BDD?
Delight your
customers
Reduce Waste
Deliver faster and
more reliably
Improve Visibility

82. So why do BDD?
Delight your
customers
Reduce Waste
Deliver faster and
more reliably
Improve Visibility

83. So why do BDD?
Delight your
customers
Reduce Waste
Deliver faster and
more reliably
Improve Visibility

84. Questions?