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7 Ways To Track Lead-Time
 

7 Ways To Track Lead-Time

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Measuring lead time is important and is a key performance indicator (KPI) that every Agile team should track. Poor lead time causes bottlenecks in the team production flow, inefficiencies, delay ...

Measuring lead time is important and is a key performance indicator (KPI) that every Agile team should track. Poor lead time causes bottlenecks in the team production flow, inefficiencies, delay costs, not to mention unhappy customers. Come to this session to discuss with others how to track and monitor improvement on lead time.

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    7 Ways To Track Lead-Time 7 Ways To Track Lead-Time Presentation Transcript

    • 7 ways to track lead-timePaulo Caroli Agile Coachpcaroli@thoughtworks.comTwitter: @paulocaroli
    • Agenda• Flow numbers at my bar• 7 Ways to track lead time• Q&A
    • Flow numbers at my bar
    • WIP• The number of bottles in the bar. Bottlesthat have been opened, but are not yetempty.
    • Lead time• The time between the bottle is added tothe bar and the bottle comes out of thebar (empty).
    • Cycle time• The time between two successive emptybottles leaving the bar
    • Throughput• The rate at which bottles are passing throughthe bar.
    • Batch size• The size of the bottles.
    • My bar…
    • I was really interested inmeasuring a whiskey bottleaverage lead time in my bar...
    • “The average number of workitems in a stable system is equalto their average completion rate,multiplied by their average timein the system.”John Little, 1961
    • WIP = Throughput x Lead time
    • Please help me out...
    • Please help me out...
    • 12 bottles...
    • an average of 6 bottles peryear…
    • ?
    • What is the average lead timefor a bottle of whiskey?
    • (a) 2 months(b) 3 months(c) 6 months(d) 1 year(e) 2 yearsWhat is the average lead time fora bottle of whiskey?
    • WIP = Throughput x Lead time
    • WIP = Throughput x Lead time12 b= 6 b / year x Lead time
    • WIP = Throughput x Lead time12 b= 6 b / year x Lead timeLead time = 2 years
    • Little’s law math
    • WIP = Throughput x Lead time12 b= 6 b / year x Lead timeLead time = 2 years
    • WIP = Throughput x Lead time1
    • Visual repesentation for SWDevelopmemnt work...
    • Doing DoneTo Do105931181721475112JohnSuzyPaulAmy
    • Doing DoneTo Do105931181721475112JohnSuzyPaulAmyLead Time10 10Day 1Day 6
    • Write on card
    • Banana peal
    • Chickenpox
    • Story tracking graph
    • Little’s Law
    • Story Tracking
    • Little’s Law
    • Control Chart
    • Control Chart
    • Control Chart
    • Cummulative Flow Diagram
    • Doing(Limit) DoneTo Do105931181721475112JohnSuzyPaulAmyWIPLead Time
    • WIPLead Time
    • Lead TimeCumulative Flow Diagram
    • Let’s build these graphs together!61
    • Story #time
    • Lead timetime
    • Worktime
    • 66Functionalitytime
    • 67Functionalitytime
    • Story #time
    • timeLead time
    • Worktime
    • Worktime
    • 72Functionalitytime
    • Story #time
    • timeLead time
    • Worktime
    • Worktime
    • 77Functionalitytime4
    • Story #time
    • timeLead time
    • Worktime
    • Worktime
    • Agenda• Flow numbers at my bar• 7 Ways to track lead time• Q&A
    • WIP = Throughput x Lead time1
    • Little’s Law
    • Control Chart
    • Lead TimeCumulative Flow Diagram
    • 7 Ways to track lead-timePaulo Caroli Agile Coachpcaroli@thoughtworks.comTwitter: @paulocaroli
    • Paulo Caroli Agile Coachpcaroli@thoughtworks.comTwitter: @paulocaroliThank you!Questions?feedback please: @paulocaroliwww.OptimizingTheFlow.com
    • Question / ExamplePlanned and Planning:velocity versus lead time92
    • 93Functionality42882484Total Scope: 40Total Scope: 40
    • If all work could bestarted at the same time...94
    • Product Backlog95Functionalitytime
    • The team has 3 pairs of engineers,and dependent Stories(swim lanes)96
    • 97time
    • 98Functionalitytime
    • Now looking at Sprints99
    • 100Functionalitytimesp 1sp 1 sp 2sp 2 sp 3sp 3
    • 101Functionalitytime42882484sp 1sp 1 sp 2sp 2 sp 3sp 3
    • Let’s go back in timeand compare planned and actual102
    • Planned103Functionality42882484Total Scope: 40 points1 Release of 3 sprintsExpected velocity:10 points for Sprint 115 points for Sprint 2 and 3Total Scope: 40 points1 Release of 3 sprintsExpected velocity:10 points for Sprint 115 points for Sprint 2 and 3
    • 104Functionalitytimesp 1sp 1 sp 2sp 2 sp 3sp 3Velocity (planned)1015 15
    • 105Functionalitytimesp 1sp 1 sp 2sp 2 sp 3sp 3Velocity (planned)1015 15
    • 106Functionalitytimesp 1sp 1 sp 2sp 2 sp 3sp 3Burn Up (planned)102540
    • Actual...107
    • 108Functionalitytime42sp 1sp 1 sp 2sp 2 sp 3sp 3
    • 109Functionalitytime42sp 1sp 1 sp 2sp 2 sp 3sp 3
    • 110Functionalitytime42sp 1sp 1 sp 2sp 2 sp 3sp 3Planned: 1010
    • 111Functionalitytime42sp 1sp 1 sp 2sp 2 sp 3sp 3Finished: 6106
    • 112Functionalitytimesp 1sp 1 sp 2sp 2 sp 3sp 3Burn Up (planned)102540plannedactual6
    • That Sprint review meeting...113
    • 114Functionalitytime42sp 1sp 1 sp 2sp 2 sp 3sp 382
    • 115Functionalitytime42882484sp 1sp 1 sp 2sp 2 sp 3sp 31015 15618 16
    • 116Functionalitytimesp 1sp 1 sp 2sp 2 sp 3sp 3Burn Up102540624plannedactual
    • Using lead time instead...117
    • Story #time
    • Lead timetime
    • 120Functionalitytime42882484sp 1sp 1 sp 2sp 2 sp 3sp 3
    • 121Functionalitytimesp 1sp 1 sp 2sp 2 sp 3sp 3
    • Story #time
    • timeLead time
    • 124Functionalitytimesp 1sp 1 sp 2sp 2 sp 3sp 3
    • Story #time
    • StimeLead time
    • 127Functionalitytime4sp 1sp 1 sp 2sp 2 sp 3sp 3
    • Story #time
    • SMLtimeLead time
    • What about looking at the lead timenumbers instead of velocity?130
    • Planning131Functionality42882484Total Scope: 8 StoriesOn day 6 out of 15:3 Stories are done, 2 are inprogress; 3 to goAvg lead time = 5 days andthe team work on 3 stories inparallelTotal Scope: 8 StoriesOn day 6 out of 15:3 Stories are done, 2 are inprogress; 3 to goAvg lead time = 5 days andthe team work on 3 stories inparalleldoneInprogressnext
    • Will we make it?Answer based on lead time: yes, weshould finish all stories by day 15132Answer based on velocity: we need to increate theteam velocity, otherwise we will not finish all 40story points by day 15vs.
    • QuestionWhat about using lead time andestimates?133
    • You can get average per story size134
    • SMLSLMLMtimeLead time
    • SMLSLMLMtimeLead time
    • Or average for lead time (if you arealready over extimates)137
    • Control Chart
    • QuestionHow do i visualize cycle time?139
    • SMLSLMLMCycle timeCycle timetimeLead time