077 Iteration

Repeating a set of design and development operations, with each repetition building on the last, until the desired result is achieved.

• Complexity does not emerge without iteration. In nature, iteration allows complex structures to form by progressively building on simpler structures.

• Design iteration refers to repeating the basic steps of analysis, prototyping, and testing until a desired result is achieved.

• With iterative design, there is no failure—just iterations with lessons learned to apply to the next iteration. Accordingly, failure is not to be feared but embraced.

• Iteration is the backbone of design and design thinking. Great design does not happen without it.

• Embrace iteration in all aspects of design and development. Seek ways to accelerate iteration to speed learning and progress. Fail fast. Fail early.

See Also Development Cycle • Feedback Loop • KISS Prototyping • Self-Similarity

By focusing on designing a plane that could be rebuilt in hours versus months, engineer Paul MacCready enabled his team to dramatically speed up iteration. Six months later, the Gossamer Condor flew over 2,000 meters, winning the first Kremer Prize.