Zsolt Fabok
June 15, 2013
210

[Dare2013] Measure and Manage Flow

The new version of my talk with flow efficiency and new things

June 15, 2013

Transcript

1. Measure and Manage Flow in Practice @ZsoltFabok http://zsoltfabok.com/ by Zsolt

Fabok 2013-06-15 Broke the WIP limit TWICE Still on the team #dare13 http://dare2013.be/

40 6 87%
7. lead time (minutes) moving (minutes) waiting (minutes) ﬂow efﬁciency 46

40 6 87% 44 40 4 91%
8. lead time (minutes) moving (minutes) waiting (minutes) ﬂow efﬁciency 46

40 6 87% 44 40 4 91% 35 31 4 89%
9. lead time (minutes) moving (minutes) waiting (minutes) ﬂow efﬁciency 46

40 6 87% 44 40 4 91% 35 31 4 89% 38 26 12 68%
10. We observed an increase in lead time This and the

following data is the courtesy of Digital Natives
11. Distribution of lead times days count 0 3 5 8

10 13 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 22 28 33 56 average median* *Calculation of medians is a popular technique in summary statistics and summarizing statistical data, since it is simple to understand and easy to calculate, while also giving a measure that is more robust in the presence of outlier values
12. working (hours) waiting (hours) ﬂow efﬁciency 1 63 2% 7

57 10% 2 62 3% 2 62 3% 3 61 4% Some examples of work items with 8-day lead time

14. Distribution of lead times days count 0 3 5 8

10 13 15 1 4 7 10 13 16 33 Before average 0 3 5 8 10 13 15 1 3 5 7 9 11 13 22 count days After median

be great

17. 0 4 8 11 15 31-32 33-34 35-36 37-38 Number

of rejected work items count week
18. 0 4 8 11 15 31-32 33-34 35-36 37-38 39-40

42-43 44-45 Number of rejected work items count week

20. Sales: “I want to know when the new features can

hit the market!” Management: “I want to know how much it will cost me!”
21. All the work items we had so far (~20 work

items) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ v v v v v v v v
22. Categorizing them into three groups ~ ~ ~ ~ ~

~ ~ ~ ~ ~ ~ ~ v v v v v v v v S M L
23. The lead time distribution ~ ~ ~ ~ ~ ~

~ ~ v v v v M 0 1 1 2 3 3 4 1 2 3 4 5 6 7 8 9 12 13 16 SLA days count Expired
24. The spent time distribution ~ ~ ~ ~ ~ ~

~ ~ v v v v M 0 1 2 3 4 5 6 6 7 8 9 10 SLA hours count

27. 0 4 8 11 15 week 1 week 2 week

3 week 4 incoming outgoing Real data will come after ﬁnishing this experiment!