Slow down to go fast agile 2012 - slides 0
Transcript of Slow down to go fast agile 2012 - slides 0
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1 Microsoft Agile 2012 1 Microsoft Agile 2012 1
Slow Down to Go Fast: Lessons Learned Shipping
Bing Voice Search on Xbox
James Waletzky
Director of Development & QA Practices, Crosslake
(formerly Dev Lead @ Microsoft)
Randy Santossio
Senior SDET, Microsoft (Xbox)
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2 Microsoft Agile 2012 2 Microsoft Agile 2012 2 J J
Who is this James guy?
http://blogs.msdn.com/b/progressive_development/
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3 Microsoft Agile 2012 3 Microsoft Agile 2012 3 J J
The little engine that could
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Who is this Randy guy?
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From that little Redmond startup…
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How is your short term memory?
Dory says… “Please jot down your
questions and save
them for the end.”
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How to win the race
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Agile vs. agile
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Just Bing it!
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The internal workings
Controller
Input
Voice Input
(Kinect)
Voice to
Text
Xbox
LIVE
bing
Games
Movies TV
Music Apps
Applications
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Story time!
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Once upon a time…
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They lived in a world where…
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Boundaries existed
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Kick off!
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Their first task
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Best buddies?
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Test/Dev: Best Buddies?
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The buddies worked together…
Dev:
• sends code review
Team:
• reviews code changes
• builds & tests new code
• finds new bugs
Dev:
• fixes found bugs
• updates code review
Team:
• signs off on code
• dev checks in code
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They huddled every day around this archaic board
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Comprehensive documentation? Well, no…
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Many dependencies, great responsibility
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We used Milestones “checkpoints”
or
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Nobody is perfect
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“I got your back, Bro”
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What’s this about “Exit Criteria”?
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Reality hurts
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The answer? Begin with the end in mind!
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It’s the thought that counts
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Automation happens!
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…but we didn’t automate everything
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Why NOT automate everything?
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We all took responsibility for quality
Quality Ownership
Dev Test PM Design
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Working in lockstep
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I Unit Tests!
“Unit Tests make
me feel cuddly”
“Thinking test-first
helped me get the
design right the
first time”
“Is it failing because of
a problem in the code,
or because I don’t
understand the code”
“Unit tests flagged a
real bug in legacy
code that I never
would have found”
“In God we trust.
Everything else we
unit test”
“My unit tests revealed a
subtle bug that never would
have been found otherwise
[except potentially by the
customer]”
Real, unsolicited quotes
from Xbox developers
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No unit tests? You’ve got some ‘splaining to do!
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Bugs still happen
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Bugs were “bliss” to this team
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What should YOUR team do?
Start “by the book”, and always follow the principles, but break agile
as necessary
Form dev/test buddies early
Build quality in early – remove the walls
Collaborate in person and in writing
Create “done” definitions based on tests
Automate pragmatically, using coverage to adapt
Pay down your technical debt before it is long-term
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James Waletzky
Director of Development & QA Practices, Crosslake
(formerly Dev Lead @ Microsoft)
Randy Santossio
Senior SDET, Microsoft (Xbox)