Sisyphus, Windows, Xbox, and Lean · Kanban enables lean continuous delivery “I understand Kanban...
Transcript of Sisyphus, Windows, Xbox, and Lean · Kanban enables lean continuous delivery “I understand Kanban...
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Sisyphus, Windows, Xbox, and Lean
Eric BrechnerPrincipal Dev Manager
Windows & Xbox
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Our struggle
• Lean at Microsoft• A short history of Windows and Xbox• Teaching an old dog new tricks• Tried it, didn’t like it• Vary the old tricks• Train the fleas• Kanban enables lean continuous delivery
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Lean at Microsoft
Foundation• Feature teams• Customer focus• Continuous integration• Quality control• Agility of feature teams
Remodel• Data-driven decision making• Customer obsession• Continuous delivery• DevOps• Kanban
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A short history of Windows and Xbox
1995• Windows 95
2001• Windows XP
2009• Windows 7
2012• Windows 8
1998•DirectX box•4 people
2001•Original Xbox•Home and Retail Product group
2005•Xbox 360•Entertainment & Devices Division
2013•Xbox One•Interactive Entertainment Business
2013• Windows
and Xbox Combine
2015• Windows 10• 15,000+
Engineers(2,000+ in Xbox)
2017• Windows
and Xbox Split
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Teaching an old dog new tricks
• Five years ago, Windows and Xbox both felt the need for speed• Xbox: progressive, energetic
• Moved to CI/CD in 2 years
• Windows: conservative, massive• Moved portions to CI/CD in 3 years• Remaining accelerating toward CI/CD
• Some things worked, some didn’t
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Tried it, didn’t like it
• Swapped out the build system (fail)• Changing everything at once• A step at a time
• Advocated “continuous delivery” (scary)• New terminology• Familiar ideas with new twists
• “flighting”, “idea to data”, “code to customer”
• 3-year cycles à 1 year à 1 month (6 months)• Moving too fast• Incremental steps with time to adjust
This Photo by Unknown Author is licensed under CC BY-NC-ND
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Old dogs don’t really learn new tricks
•Vary the old tricks• Train the fleas
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Vary the old tricks
• Keep the planning, but shorten the cycles• Keep the features, but reframe
around customer impact• Keep the telemetry, but use it to
make decisions• Keep the continuous integration,
but add continuous delivery
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Train the fleas
• Adopt Kanban at feature team level• Make it hip, easy, and practical• Avoid being preachy and inflexible• Tie back to planning and release systems
• Refactor components to enable CI/CD• Reduce technical debt• Switch feature teams to DevOps• Drive to sub-day cycle time
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Kanban enables lean continuous delivery
“I understand Kanban and continuous delivery are not necessarily one and the same – but I think that continuous delivery workflow will help work move more smoothly using the Kanban model”
– Windows Dev Lead
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Questions?Kanban enables lean continuous delivery