In modern engineering, it is uncommon to do any activity without the use of computers and information technology. the engineering activity includes design, development and testing of a product, process, technology, software or information system. Use of robust engineering methods in these applications can be extremely useful in enhancing overall performance and cost effectiveness. Thus, robust engineering methods will also play a crucial role in Design for Six Sigma (DFSS) activities in all areas including software and information technology. Until now, there was no book that fully described the use of robust engineering methods in computer applications. This book will be useful not only to DFSS green belts and black belts, but also: engineers, robust engineering practitioners and researchers, R & D personnel, simulation specialists, software testing personnel, computer programmers, information technology and artificial engineering specialists, statisticians, and academicians in quality engineering.