Rapid prototyping can be defined as a variety of techniques employed to quickly manufacture a scale model of a physical assembly or product. Usually three dimensional computer aided design, or CAD, is ...

Ryan Gray is Co-Founder and CEO of SGW Designworks, a product engineering and design firm featured in The Lean Startup. It’s very common for a prospective client to come to our product development ...

Opinions expressed by Entrepreneur contributors are their own. Amazon Fire Phone, Google Glass, New Coke and Nintendo’s Virtual Boy: What do all these products have in common? They didn’t sell.