“Before we can build and sell a product, we have to answer some very basic questions: What are the problems our product solves? Do customers perceive these problems as important or “must-have”? If we’re selling to businesses, who in a company has a problem our product could solve? If we are selling to consumers how do we reach them? How big is this problem? Who do we make the first sales call on? Who else has to approve the purchase? How many customers do we need to be profitable? What’s the average order size?”