We have been using Sam’s “Design Diamond” for a few years now as part of our teaching. We have never formally written it up or used it for any purpose other than to convince our first years of best practice. We thought it was about time we shared with the world – and you.
Siimply stated it aims to convince design students of the process of design. That without one of the four corners of the diamond then a design presentation (a crate or critique) will be weak.