Design for Interaction: Ideation and Design Principles
http://johnnyholland.org/2009/09/10/ideation-and-design-principles/

Saffer, Dan
Johnny Holland
2009

Abstract:

Once you’ve come up with tons of ideas, how do you choose which ones are worth pursuing? You use a set of design principles that will not only help select the best ideas, but guide the design through refinement, prototyping, development, and beyond. But first, let’s diverge and come up with concepts.