Book
The Four Steps to the Epiphany – Successful Strategies for Product that Win
Blank, S. (2013)
Introduced the four-step customer development model.
The first edition (2003) started the “lean startup” approach; with the Business Model Canvas and eventually the Lean Canvas Model flowing from the ideas contained in the customer development model. The book starts with a chapter entitled “The Path to Disaster: The Product Development Model”