Sandi Metz: Rules

Transcript

1. 1.

   @sandimetz Jan 2014 Sandi Metz Rules Tuesday, January 14, 14

2. 2.

   @sandimetz Jan 2014 taboos Tuesday, January 14, 14

3. 3.

   @sandimetz Jan 2014 Tuesday, January 14, 14

4. 4.

   @sandimetz Jan 2014 laws Tuesday, January 14, 14

5. 5.

   @sandimetz Jan 2014 Tuesday, January 14, 14

6. 6.

   @sandimetz Jan 2014 norms Tuesday, January 14, 14

7. 7.

   @sandimetz Jan 2014 Tuesday, January 14, 14

8. 8.

   @sandimetz Jan 2014 obedience? Tuesday, January 14, 14

9. 9.

   @sandimetz Jan 2014 1 self interest Tuesday, January 14, 14

10. 10.

    @sandimetz Jan 2014 Tuesday, January 14, 14

11. 11.

    @sandimetz Jan 2014 2 identity status Tuesday, January 14, 14

12. 12.

    @sandimetz Jan 2014 Tuesday, January 14, 14

13. 13.

    @sandimetz Jan 2014 Tuesday, January 14, 14

14. 14.

    @sandimetz Jan 2014 Tuesday, January 14, 14

15. 15.

    @sandimetz Jan 2014 Tuesday, January 14, 14

16. 16.

    @sandimetz Jan 2014 Tuesday, January 14, 14

17. 17.

    @sandimetz Jan 2014 3 authority Tuesday, January 14, 14

18. 18.

    @sandimetz Jan 2014 Tuesday, January 14, 14

19. 19.

    @sandimetz Jan 2014 Tuesday, January 14, 14

20. 20.

    @sandimetz Jan 2014 Tuesday, January 14, 14

21. 21.

    @sandimetz Jan 2014 4 order Tuesday, January 14, 14

22. 22.

    @sandimetz Jan 2014 Tuesday, January 14, 14

23. 23.

    @sandimetz Jan 2014 Tuesday, January 14, 14

24. 24.

    @sandimetz Jan 2014 Tuesday, January 14, 14

25. 25.

    @sandimetz Jan 2014 5 social sanctions Tuesday, January 14, 14

26. 26.

    @sandimetz Jan 2014 Tuesday, January 14, 14

27. 27.

    @sandimetz Jan 2014 6 inherent sanctions Tuesday, January 14, 14

28. 28.

    @sandimetz Jan 2014 Tuesday, January 14, 14

29. 29.

    @sandimetz Jan 2014 7 ignorance Tuesday, January 14, 14

30. 30.

    @sandimetz Jan 2014 Tuesday, January 14, 14

31. 31.

    @sandimetz Jan 2014 8 habit Tuesday, January 14, 14

32. 32.

    @sandimetz Jan 2014 Tuesday, January 14, 14

33. 33.

    @sandimetz Jan 2014 Tuesday, January 14, 14

34. 34.

    @sandimetz Jan 2014 Tuesday, January 14, 14

35. 35.

    @sandimetz Jan 2014 taboos laws norms Tuesday, January 14, 14

36. 36.

    @sandimetz Jan 2014 self interest identity/status authority order social sanctions

    inherent sanctions ignorance habit Tuesday, January 14, 14
37. 37.

    @sandimetz Jan 2014 5 Rules Tuesday, January 14, 14

38. 38.

    @sandimetz Jan 2014 5 Constraints Tuesday, January 14, 14

39. 39.

    @sandimetz Jan 2014 100 lines per class Tuesday, January 14,

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40. 40.

    @sandimetz Jan 2014 5 lines per method Tuesday, January 14,

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41. 41.

    @sandimetz Jan 2014 4 parameters per method Tuesday, January 14,

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42. 42.

    @sandimetz Jan 2014 1 instance var per rails view Tuesday,

    January 14, 14
43. 43.

    @sandimetz Jan 2014 2 class names per rails controller action

    Tuesday, January 14, 14
44. 44.

    @sandimetz Jan 2014 2 class names per rails controller action

    (business, presenter) Tuesday, January 14, 14
45. 45.

    @sandimetz Jan 2014 Tuesday, January 14, 14

46. 46.

    @sandimetz Jan 2014 Dispensation? Tuesday, January 14, 14

47. 47.

    @sandimetz Jan 2014 Dispensation? Convince your pair!* sdf *Rule #6

    Tuesday, January 14, 14
48. 48.

    @sandimetz Jan 2014 100 lines per class    5 lines

    per method    4 params per method    1 ivar per view    2 class names per controller action No More Than Tuesday, January 14, 14
49. 49.

    @sandimetz Jan 2014 consequences Tuesday, January 14, 14

50. 50.

    @sandimetz Jan 2014 bias towards small objects Tuesday, January 14,

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51. 51.

    @sandimetz Jan 2014 bias towards POROs Tuesday, January 14, 14

52. 52.

    @sandimetz Jan 2014 bias away from dependencies Tuesday, January 14,

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53. 53.

    @sandimetz Jan 2014 rule qualities Tuesday, January 14, 14

54. 54.

    @sandimetz Jan 2014 arbitrary cut-offs Tuesday, January 14, 14

55. 55.

    @sandimetz Jan 2014 consistent goals Tuesday, January 14, 14

56. 56.

    @sandimetz Jan 2014 tension Tuesday, January 14, 14

57. 57.

    @sandimetz Jan 2014 objects Tuesday, January 14, 14

58. 58.

    @sandimetz Jan 2014 objects vs Tuesday, January 14, 14

59. 59.

    @sandimetz Jan 2014 objects vs procedures Tuesday, January 14, 14

60. 60.

    @sandimetz Jan 2014 objects vs procedures Tuesday, January 14, 14

61. 61.

    @sandimetz Jan 2014 objects vs procedures Tuesday, January 14, 14

62. 62.

    @sandimetz Jan 2014 perspective Tuesday, January 14, 14

63. 63.

    @sandimetz Jan 2014 Rails app Tuesday, January 14, 14

64. 64.

    @sandimetz Jan 2014 Rails app vs Tuesday, January 14, 14

65. 65.

    @sandimetz Jan 2014 Rails app vs application that uses Rails

    Tuesday, January 14, 14
66. 66.

    @sandimetz Jan 2014 why follow rules? Tuesday, January 14, 14

67. 67.

    @sandimetz Jan 2014 self interest Tuesday, January 14, 14

68. 68.

    @sandimetz Jan 2014 signal others? Tuesday, January 14, 14

69. 69.

    @sandimetz Jan 2014 research Tuesday, January 14, 14

70. 70.

    @sandimetz Jan 2014 Erik O. Kimbrough Alexander Vostroknutov Tuesday, January

    14, 14
71. 71.

    @sandimetz Jan 2014 Using Rules to Screen for Cooperative Types:

    Rule-Following and Restraint in Common Pool Resource Systems Tuesday, January 14, 14
72. 72.

    @sandimetz Jan 2014 Using Rules to Screen for Cooperative Types:

    Rule-Following and Restraint in Common Pool Resource Systems Tuesday, January 14, 14
73. 73.

    @sandimetz Jan 2014 study Tuesday, January 14, 14

74. 74.

    @sandimetz Jan 2014 study part 1 Tuesday, January 14, 14

75. 75.

    @sandimetz Jan 2014 identify followers vs breakers Tuesday, January 14,

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76. 76.

    @sandimetz Jan 2014 Tuesday, January 14, 14

77. 77.

    @sandimetz Jan 2014 Task: Walk---------> Tuesday, January 14, 14

78. 78.

    @sandimetz Jan 2014 Task: Walk---------> Tuesday, January 14, 14

79. 79.

    @sandimetz Jan 2014 Task: Walk---------> Tuesday, January 14, 14

80. 80.

    @sandimetz Jan 2014 given 8€ Tuesday, January 14, 14

81. 81.

    @sandimetz Jan 2014 lose .08€ per second Tuesday, January 14,

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82. 82.

    @sandimetz Jan 2014 red light = 5 seconds Tuesday, January

    14, 14
83. 83.

    @sandimetz Jan 2014 “Wait for green light.” Tuesday, January 14,

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84. 84.

    @sandimetz Jan 2014 some folks Tuesday, January 14, 14

85. 85.

    @sandimetz Jan 2014 Tuesday, January 14, 14

86. 86.

    @sandimetz Jan 2014 Tuesday, January 14, 14

87. 87.

    @sandimetz Jan 2014 Tuesday, January 14, 14

88. 88.

    @sandimetz Jan 2014 Tuesday, January 14, 14

89. 89.

    @sandimetz Jan 2014 Tuesday, January 14, 14

90. 90.

    @sandimetz Jan 2014 Tuesday, January 14, 14

91. 91.

    @sandimetz Jan 2014 Tuesday, January 14, 14

92. 92.

    @sandimetz Jan 2014 Tuesday, January 14, 14

93. 93.

    @sandimetz Jan 2014 etc... Tuesday, January 14, 14

94. 94.

    @sandimetz Jan 2014 other folks Tuesday, January 14, 14

95. 95.

    @sandimetz Jan 2014 Tuesday, January 14, 14

96. 96.

    @sandimetz Jan 2014 Tuesday, January 14, 14

97. 97.

    @sandimetz Jan 2014 study part 2 Tuesday, January 14, 14

98. 98.

    @sandimetz Jan 2014 separate into like groups Tuesday, January 14,

    14
99. 99.

    @sandimetz Jan 2014 play cooperative game Tuesday, January 14, 14

100. 100.

     @sandimetz Jan 2014 Tuesday, January 14, 14

101. 101.

     @sandimetz Jan 2014  4 players Tuesday, January 14, 14

102. 102.

     @sandimetz Jan 2014  4 players 10 rounds Tuesday, January 14,

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103. 103.

     @sandimetz Jan 2014  4 players 10 rounds draw tokens Tuesday,

     January 14, 14
104. 104.

     @sandimetz Jan 2014 Tuesday, January 14, 14

105. 105.

     @sandimetz Jan 2014 Tuesday, January 14, 14

106. 106.

     @sandimetz Jan 2014 ∞ Tuesday, January 14, 14

107. 107.

     @sandimetz Jan 2014 1 1 1 1 ∞ Tuesday, January

     14, 14
108. 108.

     @sandimetz Jan 2014 1 1 1 1 ∞ Tuesday, January

     14, 14
109. 109.

     @sandimetz Jan 2014 1 1 1 1 360 ∞ Tuesday,

     January 14, 14
110. 110.

     @sandimetz Jan 2014 1 1 1 1 360 2 ∞

     Tuesday, January 14, 14
111. 111.

     @sandimetz Jan 2014 each player draws 60 tokens per round

     Tuesday, January 14, 14
112. 112.

     @sandimetz Jan 2014 Round 1 Tuesday, January 14, 14

113. 113.

     @sandimetz Jan 2014 Round 1 120 Tuesday, January 14, 14

114. 114.

     @sandimetz Jan 2014 120 Regeneration Tuesday, January 14, 14

115. 115.

     @sandimetz Jan 2014 120 * .5 Regeneration Tuesday, January 14,

     14
116. 116.

     @sandimetz Jan 2014 180 Regeneration Tuesday, January 14, 14

117. 117.

     @sandimetz Jan 2014 Regeneration Tuesday, January 14, 14

118. 118.

     @sandimetz Jan 2014 Regeneration Tuesday, January 14, 14

119. 119.

     @sandimetz Jan 2014 30 Regeneration Tuesday, January 14, 14

120. 120.

     @sandimetz Jan 2014 30 Regeneration Tuesday, January 14, 14

121. 121.

     @sandimetz Jan 2014 Round 2 180 remain?? Tuesday, January 14,

     14
122. 122.

     @sandimetz Jan 2014 Round 2 180 - 30 = 150

     Tuesday, January 14, 14
123. 123.

     @sandimetz Jan 2014 Round 2 180 - 30 = 150

     150 / 4 = 37.5 Tuesday, January 14, 14
124. 124.

     @sandimetz Jan 2014 Round 2 37! Tuesday, January 14, 14

125. 125.

     @sandimetz Jan 2014 180 Round 2 1 1 1 1

     2 Tuesday, January 14, 14
126. 126.

     @sandimetz Jan 2014 Round 2 Tuesday, January 14, 14

127. 127.

     @sandimetz Jan 2014 Round 2 32 Tuesday, January 14, 14

128. 128.

     @sandimetz Jan 2014 32 Regeneration Tuesday, January 14, 14

129. 129.

     @sandimetz Jan 2014 32 * .5 Regeneration Tuesday, January 14,

     14
130. 130.

     @sandimetz Jan 2014 48 Regeneration Tuesday, January 14, 14

131. 131.

     @sandimetz Jan 2014 (current - 30) / 4 Tuesday, January

     14, 14
132. 132.

     @sandimetz Jan 2014 Round 3 4 Tuesday, January 14, 14

133. 133.

     @sandimetz Jan 2014 results Tuesday, January 14, 14

134. 134.

     @sandimetz Jan 2014 followers Tuesday, January 14, 14

135. 135.

     @sandimetz Jan 2014 followers cooperate for mutual long term gain

     Tuesday, January 14, 14
136. 136.

     @sandimetz Jan 2014 breakers Tuesday, January 14, 14

137. 137.

     @sandimetz Jan 2014 breakers throw team under bus Tuesday, January

     14, 14
138. 138.

     @sandimetz Jan 2014 60! 60! 60! 60! Tuesday, January 14,

     14
139. 139.

     @sandimetz Jan 2014 mixed groups Tuesday, January 14, 14

140. 140.

     @sandimetz Jan 2014 mixed groups behave like breaker groups Tuesday,

     January 14, 14
141. 141.

     @sandimetz Jan 2014 30! 30! 30! 50! Tuesday, January 14,

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142. 142.

     @sandimetz Jan 2014 50! Tuesday, January 14, 14

143. 143.

     @sandimetz Jan 2014 60! 60! 60! 50! Tuesday, January 14,

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144. 144.

     @sandimetz Jan 2014 consequences (reprise) Tuesday, January 14, 14

145. 145.

     @sandimetz Jan 2014 bias towards small objects Tuesday, January 14,

     14
146. 146.

     @sandimetz Jan 2014 bias towards POROs Tuesday, January 14, 14

147. 147.

     @sandimetz Jan 2014 bias away from dependencies Tuesday, January 14,

     14
148. 148.

     @sandimetz Jan 2014 bias towards collaboration Tuesday, January 14, 14

149. 149.

     @sandimetz Jan 2014 bias towards collaboration Tuesday, January 14, 14

150. 150.

     @sandimetz Jan 2014 self interest identity/status authority order social sanctions

     inherent sanctions ignorance habit Tuesday, January 14, 14
151. 151.

     @sandimetz Jan 2014 9 signal cooperation Tuesday, January 14, 14

152. 152.

     @sandimetz Jan 2014 rules matter Tuesday, January 14, 14

153. 153.

     @sandimetz Jan 2014 write better software Tuesday, January 14, 14

154. 154.

     @sandimetz Jan 2014 find trustworthy humans Tuesday, January 14, 14

155. 155.

     @sandimetz Jan 2014 Thanks Tuesday, January 14, 14

156. 156.

     @sandimetz Jan 2014 Credits http://www.flickr.com/photos/paul-w-locke/1792803096/ Cannibal Pumpkins http://www.flickr.com/photos/john_pp/3155064087/ 100K Speed

     limit sign on cliff with hiker http://www.flickr.com/photos/paphio/272769602/ Cops cheek kissing http://www.flickr.com/photos/pixel8-rcrd/5791227393/ kid winning contest http://www.flickr.com/photos/fluffy_steve/2537798898/ two goths http://www.flickr.com/photos/bobjagendorf/3064198102/ wall street shuffle http://www.flickr.com/photos/pdsphil/278060802/ rubyconf room 2006 http://www.flickr.com/photos/danicuki/6319528505/ konstanin and jose http://www.flickr.com/photos/lucasrenan/5142409437/ 3 ruby nerds, 10/26/2010 http://www.flickr.com/photos/85529750@N00/5200928365/ pope barcelona http://www.flickr.com/photos/nathaninsandiego/3783772122/ umpire http://www.flickr.com/photos/rrrodrigo/4664885112/ matz http://www.flickr.com/photos/85529750@N00/5200928365/ pope barcelona http://www.flickr.com/photos/nathaninsandiego/3783772122/ umpire http://www.flickr.com/photos/rrrodrigo/4664885112/ matz http://www.flickr.com/photos/z_wenjie/7820625836 pansies http://www.flickr.com/photos/haikugirl/4813516858/ trees http://www.flickr.com/photos/emsef/2407145479/ bus stop queue http://www.flickr.com/photos/theretrographer/9228096325/ rows of jail cells brightly lit Tuesday, January 14, 14
157. 157.

     @sandimetz Jan 2014 Credits http://www.flickr.com/photos/jakebouma/102485568/ Car cliff warning http://www.flickr.com/photos/burge009/5215723703/ free

     tatoos http://www.flickr.com/photos/singularitysummit/6261754179/ one swarming robot http://www.flickr.com/photos/singularitysummit/6262287656/ swarming robots swarming http://www.flickr.com/photos/osakasteve/17178084/ swarming robots in a line http://en.wikipedia.org/wiki/Social_rule_system_theory Kinbrough, Erik O., Vosroknutov, Alexander (2012 draft), Using Rules to Screen for Cooperative Types: Rule-Following and Restraint in Common Pool Resource Systems Tuesday, January 14, 14
158. 158.

     http://poodr.com Sandi Metz @sandimetz @sandimetz Jan 2014 Tuesday, January 14,

     14
159. 159.

     @sandimetz Jan 2014 3-day public OOP class, Durham March 12-14,

     2014 http://sandimetz.com Tuesday, January 14, 14
160. 160.

     @sandimetz Jan 2014 3-day public OOP class, Durham March 12-14,

     2014 http://sandimetz.com * triangle.rb discount * http://bit.ly/mar2014_99bottles Tuesday, January 14, 14
161. 161.

     @sandimetz Jan 2014 Questions? Tuesday, January 14, 14

162. 162.

     http://poodr.com Sandi Metz @sandimetz @sandimetz Jan 2014 Tuesday, January 14,

     14