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 You must unlearn what you have learned.




       koji.shimada@enishi-tech.com

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Photo by tmaeda
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from Sapporo,
                with Love for Ruby



                               Photo by darashi
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 You must unlearn what you have learned.




       koji.shimada@enishi-tech.com

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R u by




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-   RubyKaigi2008


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QWAN on Ruby


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http://www.?ickr.com/photos/33224129@N00/3301269103/
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?
                ?
                ?


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No




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Strategy




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Andrew Hunt and Dave omas
                      e Pragmatic Programmer




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YAGNI

            You Aint Gonna Need It



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Single Responsibility
                 Open-Closed
                Liscov Substitution
                Interface Segregation
                Dependency Inversion
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http://www.objectclub.jp/community/memorial/
                homepage3.nifty.com/masarl/article/dp-ocp-2.html
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Expect Unexpected Change




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Growing
  Object-Oriented
  Software,
  Guided by Tests
  Steve Freeman
  Nat Pryce

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Growing
  Object-Oriented
  Software,
  Guided by Tests
  Steve Freeman
  Nat Pryce

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http://www.?ickr.com/photos/barnaby_s/2332109365/
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Push Your Self to Learn



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To do good work
                     your tools




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http://www.?ickr.com/photos/aslakr/14507479/
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ActiveRecord




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or



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(How)



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(Why)



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http://www.?ickr.com/photos/aslakr/14507479/
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Ruby
                 X



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-   RubyKaigi2008


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I LOVE RUBY




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 You must unlearn what you have learned.




       koji.shimada@enishi-tech.com

2010   12   5
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