Steve Blank Quotes
Using the Product Development Waterfall diagram for Customer Development activities is like using a clock to tell the temperature. They both measure something, but not the thing you wanted.
Citations
Blank, Steve. The Four Steps to the Epiphany: Successful Strategies for Products that Win. K&S Ranch, 2005.
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Steve Blank (born 1953) is a Silicon Valley entrepreneur based in Pescadero, California.