Customer Development Leadership PR Seed Stage 
Steve Blank
AUGUST 27, 2009
This series of posts is a brief explanation of how we’ve evolved from Product Development to Customer Development to the Lean Startup. The Product Development Diagram Emerging early in the twentieth century, this product-centric model described a process that evolved in manufacturing industries.
steveblank.com
JULY 8, 2011
Reply steveblank , on September 16, 2009 at 7:00 pm said: Greg, The Google Group “Lean Startup Circle&# at [link] is a wonderful repository of Customer Development/Lean Startup success and failure. It’s more reference material. Thus, these pages. I’ll add more as time goes on. Can we touch base on this.
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