This Delft Design Guide is the result of many years of experience from design students, professionals, researchers and tutors from the faculty of Industrial Design Engineering at the Delft University of Technology. The design methods presented in this book can be very useful for you as a designer, both during your time as a student and as a practitioner. Our aim is that you will use it as a source and reference duringand after your design education to gradually build a repertoire of different ways of approaching the design of products.