Slides used for Bizdevops Master Webinar Series

1. Stress-free Continuous
Delivery Using Sensible
Information Radiators
Vivek Ganesan
Gainsight

2. Setting the Context

3. What is Continuous Delivery?

4. Three Levels of Maturity
CI - Continuous
Integration
All code integrated
at least every sprint

5. Three Levels of Maturity
CI - Continuous
Integration
CD - Continuous
Delivery
All code integrated
at least every sprint
CI + Deployment
Readiness + A Push
button deployment

6. Three Levels of Maturity
CI - Continuous
Integration
CD - Continuous
Delivery
CDep- Continuous
Deployment
All code integrated
at least every sprint
CI + Deployment
Readiness + A Push
button deployment
Automated
deployment on
Green

7. What is an Information Radiator?

8. Are all of these Information Radiators?

9. Are all of these Information Radiators?
● These are on-demand
access - Not ‘always
on’.
● These are not
available to “all”
audience in the area -
Unavailable to casual
onlookers.

10. Is this an Information Radiator?

11. Is this an Information Radiator?
Team 1 Team 2
Team 3
Not until this
happens!

12. Moral
Information Radiator
&
Information
Refrigerator
are NOT the same!

13. Where is Stress introduced in a CD system?

14. Where is Stress introduced in a CD system?
When human
responses take long!

15. Dynamics of a CD System with an Information Radiator
CD
System
Radiator
Information
Observer
int a;
char b;
a=10;
b=’c’;
Corrective
Action
Change of
State

16. Dynamics of a CD System with an Information Radiator
CD
System
Radiator
Information
Observer
int a;
char b;
a=10;
b=’c’;
Corrective
Action
Change of
State
This is quite
straight-forward
COMMUNICATION
SUBSYSTEM

17. Dynamics of a CD System with an Information Radiator
CD
System
Radiator
Information
Observer
int a;
char b;
a=10;
b=’c’;
Corrective
Action
Change of
State
This is not as
straight-forward
as it looks!
CORRECTION
SUBSYSTEM

18. Goal
We will experiment with
variations in COMMUNICATION
SUBSYSTEM
aiming to
optimize the cycle time of
CORRECTION SUBSYSTEM

19. A Closer View of Correction Subsystem
Observer
int a;
char b;
a=10;
b=’c’;
Corrective
Action
This is not as
straight-forward
as it looks!
CORRECTION
SUBSYSTEM

20. Observer
int a;
char b;
a=10;
b=’c’;
Corrective
Action
This is not as
straight-forward
as it looks!
Why?
This involves application of
● Social Psychology
● Group Dynamics
● Human Motivation Theory
● ….and much more that we
do not know!
A Closer View of Correction Subsystem

21. What is the function of Communication Subsystem?
CD
System
Radiator
Information
Observer
FUNCTION
By appropriate means, relay just the appropriate information to the observer.

22. Radiator
Information
Observer
FUNCTION
By appropriate means, relay only the appropriate information to the observer.
Variable 1 Variable 2
CD
System
What is the function of Communication Subsystem?

23. Variable 1 - Means of communication

24. 1. Visual Information Radiators

25. Position - Does it matter?

26. Position - An Important Parameter in Visual
Information Radiators
Activity: Spot the error in the following workplace arrangement

27. ● People need
to turn their
heads to view
the monitor.
● Creates
‘Polling’
behaviour
instead of
‘Radiation’ of
information
Position - An Important Parameter in Visual
Information Radiators
Activity: Spot the error in the following workplace arrangement

28. Position - An Important Parameter in Visual
Information Radiators
Alternate Arrangement
● Everyone can lean
back in the chair to
see the status.
● Even while looking at
laptop monitor, IR is
present in peripheral
visibility range.
● Ergonomically safe.

29. Position - An Important Parameter in Visual
Information Radiators
Multi-Team Arrangement - Less cost as teams grow

30. Role of Colors

31. Different Tools - Different Colors
Jenkins - Pipeline - Stage View
Cradiator
Jenkins Build Monitor
information-radiator
GoDashboard

32. The Power of Red

33. The Red-Amber-Green History
Stop

34. The Red-Amber-Green History
Stop
Go
Version 1

35. The Red-Amber-Green History
Stop
Caution
Go
Version 1

36. The Red-Amber-Green History
Stop
Caution
Go
Version 1 Version 2

37. The Red-Amber-Green History
Stop
Caution
Go
Version 1 Version 2
Version 3

38. Misuse of Red-Yellow-Green Scheme

39. Misuse of Red-Yellow-Green Scheme
• RYG scheme is mostly misused to indicate ‘progress’ of something.
– They hide the truth at best

40. Misuse of Red-Yellow-Green Scheme
• RYG scheme is mostly misused to indicate ‘progress’ of something.
– They hide the truth at best
• This creates more problems than the original ones.

41. Misuse of Red-Yellow-Green Scheme
• RYG scheme is mostly misused to indicate ‘progress’ of something.
– They hide the truth at best
• This creates more problems than the original ones.
• People get furious when ‘green’ changes to ‘red’ on the last date.
– To avoid fury, the team cuts corners
– If the teams are honest, they are labelled as ‘untrustworthy’
– Leads to micromanagement

42. Moral
Use Red-Yellow-Green
Scheme to qualify completed
events
not ongoing events!

43. Not so soon!
Are we done with colors?
1 in 8 men
1 in 200 women
are colorblind!
Source: http://www.colourblindawareness.org/colour-blindness/

44. More bad news!!!
Most color blind people
cannot differentiate
between red and green!
Source: http://www.colourblindawareness.org/colour-blindness/

45. Normal Vision
Color Blind Vision
http://www.color-blindness.com/coblis-color-blindness-simulator/

46. How did Jenkins Build Monitor solve this?
https://github.com/jan-molak/jenkins-build-monitor-plugin/issues/30
Don’t miss to read the
conversation here!
Stripes to denote failure

47. How did Jenkins Pipeline solve this?
No shading - Additional
Text in bottom
Stripe-shading for ‘In
Progress’ Builds

48. Moral
Remember 1 out of 8 men???
Use an Information
Radiator that doesn’t
leave out the colorblind!

49. 2. Auditory Information Radiators

50. Distinctness from surroundings
Q: Why do we choose
‘musical’ ringtones for our
mobile phones?

51. Distinctness from surroundings
Q: Why do we choose
‘musical’ ringtones for our
mobile phones?
A: Because it will be ‘distinct’ from
the surroundings.

53. Uniqueness Factor
Q: Why does a railway
station announcement start
with a music?

54. Uniqueness Factor
Q: Why does a railway
station announcement start
with a music?
A: The music helps in uniquely
identifying the announcement from
other noises and human voices.

55. Auditory alone is not enough!
Auditory information will
ALWAYS forward you to
visual ones, if any action is
required.

56. What is the function of Subsystem A?
Radiator
Information
Observer
SUBSYSTEM - A
FUNCTION
By appropriate means, relay only the appropriate information to the observer.
Variable 1 Variable 2
CD
System

57. Pass/Fail
Variable 2 - Level of information
Level of
information

58. Latest CommitterPass/Fail
Variable 2 - Level of information
Level of
information

59. Qualifiers
Latest CommitterPass/Fail
Variable 2 - Level of information
Level of
information

60. Claim Info Qualifiers
Latest CommitterPass/Fail
Variable 2 - Level of information
Level of
information

61. Summary
● 3 Levels of maturity - CI, CD, CDep
● Difference between Information Radiator &
Information Refrigerator
● CD system has two subsystems - Tuned one
subsystem to optimize cycle time of human
subsystem.
● Visual Information Radiators
○ Position
■ Visibility is the key
○ Colors
■ Red-Yellow-Green colors
■ Case of Color blindness
■ Misuse of Red-Yellow-Green scheme
● Auditory Information Radiators
○ Distinctness from surroundings
○ Uniqueness Factor
○ Auditory forwards to visual
● Levels of Information
○ Pass/Fail
○ Committer list
○ Qualifiers - Coverage, etc
○ Avoid detailed information

62. Questions?