The document discusses the principles of kanban systems for limiting work-in-progress and visual signaling. It describes how kanban works by having cards that are pulled from upstream processes when empty and pushed to downstream processes when full. This pulls work through the system and limits WIP at each step. The document also explores how digitizing kanbans can make the system less useful if it loses the visual component.

1. The vast majority
of (so called)
kanban boards
contain no kanban.
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2. None
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3. Not one!
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4. push-me pull-you
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5. kanban?
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6. Kan-ban is a Japanese
word that literally means
"signal card" in English. In a
manufacturing environment, this
card is used as a signal to tell
an upstream step in a
process to produce
more work.
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7. kanban?
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8. Everything is a
system.
Everything is part of a
larger system.
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9. One cannot
determine the
character or nature of
a system within
itself.
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10. kanban
system?
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11. The first principles
of Kanban are to limit
work-in-progress and
to pull work using a visual
signalling system.
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12. The first principles
of Kanban are to limit
work-in-progress and to
pull work using a visual
signalling system.
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13. Wibbling
story
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Fubaring

14. Wibbling
done
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Fubaring

15. Wibbling
Fubaring
done
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16. Wibbling
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Fubaring

17. The first principles
of Kanban are to limit
work-in-progress and
to pull work using a visual
signalling system.
no
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18. Wibbling
done
Thursday, 31 October 13
Fubaring

19. Wibbling
done
Thursday, 31 October 13
Fubaring (4)

20. Wibbling
done
?
Thursday, 31 October 13
Fubaring (4)

21. Wibbling
done
?
Thursday, 31 October 13
Fubaring (4)
1

22. Wibbling
Fubaring (4)
2
done
?
Thursday, 31 October 13
1

23. Wibbling
Fubaring (4)
3
2
done
?
Thursday, 31 October 13
1

24. Wibbling
Fubaring (4)
4
3
2
done
?
Thursday, 31 October 13
1

25. at_wip_limit = (4==4)
Wibbling
Fubaring (4)
4
3
2
done
?
Thursday, 31 October 13
1

26. at_wip_limit = true
Wibbling
Fubaring (4)
4
3
2
done
?
Thursday, 31 October 13
1

27. at_wip_limit = true
Wibbling
Fubaring (4)
4
3
2
done
?
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no
1

28. The first principles
of Kanban are to limit
work-in-progress and
to pull work using a visual
signalling system.
yes
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29. The first principles
of Kanban are to limit
work-in-progress and to
pull work using a visual
signalling system.
no
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30. The first principles
of Kanban are to limit
work-in-progress and to
pull work using a visual
signalling system.
?
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31. vision
is by far our
most dominant
sense, taking up
half of our brains
resources.
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32. at_wip_limit = (4==5)
Wibbling (5)
story
story
story
story
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33. at_wip_limit = false
Wibbling (5)
story
story
story
story
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34. at_wip_limit = (3==3)
Fubaring (3)
story
story
story
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35. at_wip_limit = true
Fubaring (3)
story
story
story
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36. at wip limit?
false
true
Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
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37. false
true
Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
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38. these two columns
look exactly the same
Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
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39. that bothers me
Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
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40. to limit wip we've added
wip limits
Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
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41. to limit wip we've added
abstractions
Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
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42. that bothers me too
Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
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43. ache here?
pill here
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44. One cannot
determine the
character or nature of
a system within
itself.
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45. companies
inevitably feel they
can computerise this
whiteboard, however,
they almost always
create a more elegant
but less useful
system
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46. push-me pull-you
kanban
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47. Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
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48. Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
Thursday, 31 October 13

49. Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
Thursday, 31 October 13

50. Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
Thursday, 31 October 13

51. Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
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52. Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
story
kanban
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1

53. Wibbling (5)
Fubaring (3)
story
story
story
story
story
story
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kanban
2
kanban
story
1

54. Wibbling (5)
Fubaring (3)
story
story
story
story
story
kanban
3
story
kanban
2
kanban
1
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story

55. Wibbling (5)
story
Fubaring (3)
story
story
kanban
4
story
story
kanban
3
story
story
kanban
2
kanban
1
Thursday, 31 October 13

56. Wibbling (5)
Fubaring (3)
story
kanban
5
story
story
kanban
4
story
story
kanban
3
story
story
kanban
2
kanban
1
Thursday, 31 October 13

57. Wibbling (5)
Fubaring (3)
story
kanban
story
story
kanban
story
story
kanban
story
story
kanban
kanban
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58. Wibbling (5)
Fubaring (3)
story
kanban
story
story
kanban
story
story
kanban
story
kanban
kanban
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kanban
1
story

59. Wibbling (5)
Fubaring (3)
story
kanban
story
kanban
kanban
2
story
story
kanban
kanban
1
story
story
kanban
kanban
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story

60. Wibbling (5)
Fubaring (3)
story
kanban
kanban
3
story
story
kanban
kanban
2
story
story
kanban
kanban
1
story
story
kanban
kanban
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61. not
not
needed needed
Wibbling (5)
Fubaring (3)
story
kanban
kanban
story
story
kanban
kanban
story
story
kanban
kanban
story
story
kanban
kanban
Thursday, 31 October 13

62. Wibbling
Fubaring
story
kanban
kanban
story
story
kanban
kanban
story
story
kanban
kanban
story
story
kanban
kanban
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63. 1.Limiting
every story
must always
be in its own
kanban
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64. 1.Limiting
ok
ok
forbidden
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65. Wibbling
Fubaring
story
kanban
kanban
story
story
kanban
kanban
story
story
kanban
kanban
story
story
kanban
kanban
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66. Wibbling
kanban
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Fubaring

67. Wibbling
kanban
Thursday, 31 October 13
Fubaring

68. Wibbling
Thursday, 31 October 13
Fubaring

69. The first principles
of Kanban are to limit
work-in-progress and
to pull work using a visual
signalling system.
yes
Thursday, 31 October 13

70. The first
principles of Kanban
are to limit work-inprogress and to pull
work using a visual
signalling system.
?
Thursday, 31 October 13

71. pulling
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72. Kan-ban is a Japanese
word that literally means
"signal card" in English. In a
manufacturing environment, this
card is used as a signal to tell
an upstream step in a
process to produce
more work.
Thursday, 31 October 13

73. 2. Pulling
an "empty" kanban
is sent to an
upstream
process
Thursday, 31 October 13

74. Wibbling
Thursday, 31 October 13
Fubaring

75. Wibbling
Fubaring
pull
signal
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76. Wibbling
Fubaring
pull
signal
Thursday, 31 October 13

77. Wibbling
Fubaring
done
pull
signal
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78. Wibbling
done
Thursday, 31 October 13
Fubaring
pull
signal

79. Wibbling
done
Thursday, 31 October 13
Fubaring
pull
signal

80. Wibbling
done
Thursday, 31 October 13
Fubaring
pull
signal

81. Wibbling
Fubaring
pull
signal
Thursday, 31 October 13

82. Wibbling
Thursday, 31 October 13
Fubaring

83. Wibbling
Thursday, 31 October 13
Fubaring

84. Wibbling
Thursday, 31 October 13
Fubaring

85. Wibbling
Thursday, 31 October 13
Fubaring

86. Wibbling
Thursday, 31 October 13
Fubaring

87. Wibbling
Thursday, 31 October 13
Fubaring

88. Wibbling
Thursday, 31 October 13
Fubaring

89. Wibbling
Thursday, 31 October 13
Fubaring

90. Wibbling
Fubaring
done
Thursday, 31 October 13

91. Wibbling
Fubaring
done
Thursday, 31 October 13

92. Wibbling
Fubaring
done
Thursday, 31 October 13

93. Wibbling
Fubaring
done
Thursday, 31 October 13

94. Wibbling
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Fubaring

95. Wibbling
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Fubaring

96. Wibbling
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Fubaring

97. Wibbling
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Fubaring

98. Wibbling
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Fubaring

99. Wibbling
Thursday, 31 October 13
Fubaring

100. The first
principles of Kanban
are to limit work-inprogress and to pull
work using a visual
signalling system.
yes
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101. done stories look the same
as in-progress stories
done
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Wibbling
in-progress

102. that bothers me
done
Thursday, 31 October 13
Wibbling
in-progress

103. Wibbling
in-progress
Thursday, 31 October 13
done

104. Wibbling
in-progress
done
Thursday, 31 October 13
done

105. Wibbling
in-progress
done
Thursday, 31 October 13
done

106. Wibbling
in-progress
Thursday, 31 October 13
done

107. Wibbling
in-progress
push
Thursday, 31 October 13
done

108. pushing
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109. 3. Pushing
a "full" kanban is
sent to a
downstream
process
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110. Wibbling
Thursday, 31 October 13
Fubaring

111. Wibbling
done
Thursday, 31 October 13
Fubaring

112. Wibbling
push
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done
Fubaring

113. Wibbling
push
Thursday, 31 October 13
Fubaring
done

114. Wibbling
push
Thursday, 31 October 13
Fubaring
done

115. Wibbling
push
Thursday, 31 October 13
Fubaring

116. Wibbling
push
Thursday, 31 October 13
Fubaring

117. Wibbling
push
Thursday, 31 October 13
Fubaring

118. Wibbling
push
Thursday, 31 October 13
Fubaring

119. Wibbling
push
Thursday, 31 October 13
Fubaring

120. patterns
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121. Fubaring
Snafuing
?
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122. Wibbling
?
Thursday, 31 October 13
Fubaring

123. Wibbling
?
Thursday, 31 October 13
Fubaring
Snafuing
?

124. Wibbling
Thursday, 31 October 13
Fubaring
Snafuing

125. just in time
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126. Wibbling
Thursday, 31 October 13
Fubaring

127. Wibbling
done
Thursday, 31 October 13
Fubaring

128. Wibbling
done
Thursday, 31 October 13
Fubaring

129. slack
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130. 100% utilization
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131. 75% utilization
slack
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132. observation
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133. Wibbling
Thursday, 31 October 13
Fubaring
Snafuing

134. Wibbling
Thursday, 31 October 13
Fubaring
Snafuing

135. Wibbling
Thursday, 31 October 13
Fubaring
Snafuing

136. Wibbling
Fubaring
Snafuing
Thursday, 31 October 13

137. Snafuing
Fubaring
Wibbling
Thursday, 31 October 13

138. observation
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139. "backlog"
customer
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140. Thursday, 31 October 13

141. Thursday, 31 October 13

142. done
Thursday, 31 October 13

143. done
free
parking
free
parking
Thursday, 31 October 13
free
parking

144. done
free
parking
free
parking
Thursday, 31 October 13
free
parking

145. thank you
Thursday, 31 October 13