agile by example '16 wisdom of the crowds
TRANSCRIPT
Wisdom of the crowds@RadekLont
#abe16
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DIVERSE GROUP
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Francis Galton (1907)
INDEPENDENT DECISION
(2004)
(2004)
(2011)
DIVERSE GROUP
INDEPENDENT DECISIONWHAT
IF…
REAL: 112 MEAN: 116 MEDIAN: 115
120 votes
3,5%
90
107,5
125
142,5
160
guesses mean value real value
REAL: 112 MEAN: 111,2 MEDIAN: 112
15 students
REAL: 112 MEAN: 112,8 MEDIAN: 111
6 agilers
REAL: 72 MEAN: 69,5 MEDIAN: 70
100 votes
2,7%
40
52,5
65
77,5
90
guesses mean value real value
MEAN: 74 MEDIAN: 72
26 mix
MEAN: 69 MEDIAN: 71
8 Dev Team
REAL: 72
120 votes
REAL: 828 MEAN: 903 MEDIAN: 760
9%
8%
0
500
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guesses mean value real value
REAL: 828 MEAN: 519 MEDIAN: 417
6 agilers
DIVERSE GROUP
INDEPENDENT DECISION
PROBE over DATA
BACKLOG REFINEMENT
is a PROCESSDEVOPS way is to
EXPERIMENTAssure QUALITY at the source
@RadekLont #abe16
Wisdom of AbE crowd?
REAL: 112y 828m 75kg MEAN: 115 700 78 MEDIAN: 115 765 77
139 votes#AbE16
2,5% 15% 7,5% 4% 2,5%