[Dare2013] Measure and Manage Flow

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

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/
2. @ZsoltFabok or #dare13
3. You are optimizing on flow efficiency I’m not impressed
4. work wait work wait work lead time
5. wait work + work = *100% flow efficiency
7. lead time (minutes) moving (minutes) waiting (minutes) flow efficiency 46 40 6 87%
9. lead time (minutes) moving (minutes) waiting (minutes) flow efficiency 46 40 6 87% 44 40 4 91%
13. lead time (minutes) moving (minutes) waiting (minutes) flow efficiency 46 40 6 87% 44 40 4 91% 35 31 4 89%
14. 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%
16. We observed an increase in lead time This and the following data is the courtesy of Digital Natives
17. 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
18. 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
19. 5%
21. 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
22. If we could move items back on the board That’d be great
23. How many times the item has been moved back
24. 0 4 8 11 15 31-32 33-34 35-36 37-38 Number of rejected work items count week
25. 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
26. Predictability is actually a good thing
27. Sales: “I want to know when the new features can hit the market!” Management: “I want to know how much it will cost me!”
28. All the work items we had so far (~20 work items) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ v v v v v v v v
29. Categorizing them into three groups ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ v v v v v v v v S M L
30. 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
31. The spent time distribution ~ ~ ~ ~ ~ ~ ~ ~ v v v v M 0 1 2 3 4 5 6 6 7 8 9 10 SLA hours count
34. Current experiments
35. Courtesy of Prezi.com
36. 0 4 8 11 15 week 1 week 2 week 3 week 4 incoming outgoing Real data will come after finishing this experiment!
37. Thank you very much for your attention! @ZsoltFabok http://zsoltfabok.com/