Drink Lean from the source At Agile Roots 2014
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Drink LeanFrom the Source
Kenji Hiranabe
By Yasunobu Kawaguchi
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Kenji HIRANABE(1/2)
• (co-)Translator of …
OO, UML books Mind Map book
XP/ Agile books• (co-)Author of …
C++ book
Scrum book
Agile and Scrum:Collaborative Software
Development That Connects Customers, Engineers and
Management
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Kenji HIRANABE(2/2)• CEO of Astah.net.• astah – UML editor
– With Mind Map, ERD, SysML
– http://astah. net/
– Runs on• PC, Mac, Linux, iPad
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Seeing is understanding.Seeing is understanding.4
Agile Japan 2009
Satoshi Kuroiwa
Mary Poppendieck
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Seeing is understanding.Seeing is understanding.5
““Fearless Change”,Fearless Change”,Linda RisingLinda Rising
Agile Japan 2011
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http://www.publickey1.jp/blog/11/10_innovation_sprint_2011.html
Innovation Sprint 2011
Jeff Sutherland Ikujiro Nonaka
me
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Toyota Production System
Lean
Lean Software Development
Kanban
Lean Startup
Agile
ScrumXP
The New New Product Development Game
Four steps to the epiphany
Agile and Lean
Startup
Patterns
Manufacturing Industry in Japan
2013 Yasunobu Kawaguchi
1
2
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Video ofFactory Reconstruction
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A Video of Factory Reconstruction• Explain by a Mind Map (5 parts)
1. Waste
2. Change
3. Conflict
4. Yatai
5. Kaizen
• Share findings, ideas
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Yatai (or Hotdog Stand)
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What is WIP ?
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Analysis
Design
Implement
Test
Time Time
Scope ScopeWaterfall Scrum ScopeKanban
WIPWIPWIP
Time Lead TimeLead Time
Lead Time
Little’s Law : WIP = Lead Time(Time to completion) x Throughput(productivity)Smaller WIP -> Little waste and more.
If Throughputs are the same, Smaller WIP reduces LeadTime …-> Faster Delivery
Average throughputs are the same
365 req./year 30 req./month 1 req./day
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Video!
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……
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l e a n20
Three Stonecutters were asked:
“What are you doing?”
What are You Building?
2023年4月11日
20 Copyright©2007 Poppendieck.LLC2023年4月11日
20
I’m cutting stones!
I’m earning a living.I’m building a cathedral.
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l e a n21
Cathedral Builders
Move responsibility anddecision-making to the lowest possible level.
The Litmus Test:When workers are
annoyed by their job – Do they complain, ignore it, or fix it?
2023年4月11日
21 Copyright©2007 Poppendieck.LLC
Stone Cutters or Cathedral Builders?
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• Scientific Management– There is
“One Best Way”
ManagersPlan on Desk.
WorkersDo it.
• Lean– Do it and
Think for Yourself
Think Do
“Lean is scientific managementwhere the scientists are the first line workers.”
-- John Shook
Command Control Kaizen
Workers Do and Think for themselves.Managers help workers do and think.
Think Do
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Seeing is understanding.Seeing is understanding.26
Seeing isUnderstanding.