Effect of Batch Size on Work Flow

Editor's Notes

1. Happy Team Pictures
2. Who here comes from a waterfall background? How long does it take to get your requirements typically? They re pretty comprehensive and once you have them you usually deliver everything in one release, possibly two or three if you are using an incremental approach Contrast that with Agile processes – we allow customer to set features as long as they get them in before sprints start and make changes to the backlog – Now enter Lean – some the characteristics of lean are eliminating waste and increasing flow – What does increase flow mean? Get the value to the customer faster So how do we do that? How do we enhance the flow? If you look at the individual objects in a system, if you adjust the sizes within a process, you adjust the flow – we shall see how this is done
3. -__-M. Q M. AA. q A/B you improved by factor of xxxx that’s AWESOME
4. How was total system time for team 1, team 2? How did it change as batch size changed, awesome! Lets look at individual workers performance – how did it change? Can we say it stayed same for the sake of argument? OK so if it changed the same, how come you cut overall time?
5. Point to last person – how did u feel in sprint 1? How did you feel in Sprint 4? Why? So let me ask same question again – while no one’s time went DOWN, how did the team’s overall performance go UP??
6. ANSWER you had better workflow because the batches were smaller
7. Which team has a better flow of work The one with larger stories, or the one with smaller stories? That’s right
8. What was your first batch like?? You went from xxx to YYY Why do u think I asked you to measure the first batch time?? What is the significance of the measurement of the first batch?
9. Improtant because its when we start delviering benefits that can translate to $$$$$ this means faster delivery of first value to customer Where is this important? ? Hint I talked about it in the intro NEXT SLIDE
10. In Lean Agile! In a lean process, not only is initial work delivered faster to a customer, the entire development processes is faster BECAUSE THE FLOW IS BETTER
11. FASTER if you have any defects u will FIND AND FIX them much sooner QUALITY goes up
12. Penny Game works because we reduce the batch size
13. Penny Game works because we reduce the batch size
14. People towards end of process have nothing to do until end of cycle Pressure is on those towards end not to let down Who are these people in an Agile team? Punish the testers!! Burnup chart = POINTS delivered during a sprint =the rate at which work is being addressed What does this tell us?
15. What does this tell us ABOUT THE RISK OF MEETING YOUR SPRINT GOALS?
16. How far do you break down the stories? Steer away from as little as possible
17. Break work into small manageable batches Break all stories – 1 to 3 days per story, if a story is bigger then break it down using vertical slices Open 1-2 things at a time so you can remain focused Improve work flow to reduce or avoid the gridlock at the end
18. Happy Team Pictures