A product design that can be produced to requirements even when conditions in the production...

A robust product design is one that can consistently meet quality and performance requirements even under varying and adverse conditions in the production process. Robust design principles aim to make products less sensitive to variations, ensuring high reliability and quality despite fluctuations in manufacturing environments, material properties, or operational conditions. This approach reduces the need for frequent adjustments and can improve overall production efficiency.References:

"Design for Six Sigma" by Kai Yang and Basem El-Haik

"Taguchi Techniques for Quality Engineering" by Phillip J. Ross