Universal Principles of Design, Revised and Updated

1 A seminal contemporary work on iteration in design is The Evolution of Useful Things by Henry Petroski, Vintage Books, 1994. See also Product Design and Development by Karl T. Ulrich and Steven D. Eppinger, McGraw-Hill Higher Education, 2nd ed., 1999. See also “Positive vs. Negative Iteration in Design” by Glenn Ballard, Proceedings of the Eighth Annual Conference of the International Group for Lean Construction, 2000.

2 A common problem with design iteration is the absence of a defined endpoint—i.e., each iteration refines the design, but also reveals additional opportunities for refinement, resulting in a design process that never ends. To avoid this, establish clear criteria defining the degree to which design requirements must be satisfied ...