Continuous quality improvement is the hallmark of successful companies, worldwide. Many successful Japanese companies have adopted continuous quality improvement as the number one operational principle for all employees and departments. Chrysler, Procter and Gamble (P&G), 3M, Compaq Computer, Microsoft, and many other less well-known U.S. companies clearly practice continuous quality improvement. P&G is famous for consciously developing and introducing improved versions of its own current products under different brand names as a method for continuous quality improvement and significant technological advances (e.g., improved effectiveness in laundry soaps).