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• 29 years old
• In software development since 2004
• Engineer, PM, ScrumMaster, Agile Coach, Life Coach
Qik: Share your life as it happens.
Work Group
Product Owner
Team Leads Developers
Who’s going to work on that
feature?
Advantages
• Short time to market
• No bureaucracy
• Ownership and responsibility
• Close to the user
THE SKYPE PROCESS
Disclaimer
I was only responsible foradopting Agile in Moscow site.So my understanding of theprocess in Skype is probablyincomplete.
Release Vehicles (RV)
• Part of a system, that can be released independently
• Team
• Product Manager (PM) and Product Engineering Manager (PEM)
• Backlog
• Scrum
RV = Service
Configuration Mac Client
RV reports
• Was iteration successful?
• Was the release successful?
• What were the reasons?
• RV review meetings
WHAT IS THE PROBLEM?
But there’s a dependency!
We can take it into the sprint that
starts next week.
6 weeksDefect!
10 weeks
RV diagram
ABE
AMS
Web
iOS
QLIB
Android
Wait Time
Value Added Time
CycleEfficiency = ValueAddedTime / TotalTime
30%
Working on a typical feature
OVERCOMING THE CRISIS
Little’s Law
• Average wait time = queue size / service rate
• Lead Time = WIP / Average Completion Rate
200 ppl / 20 ppl an hour = 10 hours
Queueing theory
• Little’s Law
• What does it mean?
– With the same capacity you can shorten cycle time if you reduce the amount of things that you work on simultaneously
ABE
AMS
Web
iOS
QLIB
Android
Bottle Neck Rework
Summary
• Local efficiency vs. value flow efficiency
• Visualize feature delivery
• Control WIP
• Reduce rework by restructuring teams
• Fix date, reduce scope
Thank you!
• Alexey Ilyichev
• Agile Coach, ScrumTrek
• Skype: alexey.ilyichev
• +7 (909) 687-63-75
