Business Plan Forecast Product Development Public Relations 
Steve Blank
SEPTEMBER 3, 2009
This post describes how the traditional product development model distorts startup sales, marketing and business development. While these objectives provide an illusion of progress, in reality they do little to validate the business plan hypotheses about customers and what they will buy.
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.
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