Iteration is a fundamental of good design. Iterate both by cycling through the process multiple times, and also by iterating within a step—for example by creating multiple prototypes or trying variations of a brainstorming topics with multiple groups. This kind of iteration is crucial for success in design thinking. After all, the design thinking process is a framework for inovation and it is not successful every time. It must be done again and again until your create something truly unique and desireable.