I have more than 30 years of experience in developing, supporting, auditing and accrediting (certifying) quality software systems for safety-related applications as quality assurance manager.  I have published many articles and papers in project management, problem solving, software engineering, quality assurance and applied mathematics.  I conducted panel discussions on quality assurance at international conferences.  I participated in the development of IEEE software quality standards.  The Engineering Advancement Association of Japan translated my approach to problem solving.