Total Quality Management (TQM) is defined as both a philosophy and set of principles that directs continuous improvement in a business. The key concepts of TQM include commitment from top management, a focus on customers, involvement of employees, continuous process improvement, treating suppliers as partners, and establishing performance measures. TQM requires changing the organizational culture to be customer-oriented, focus on prevention over detection, and make quality improvement everyone's responsibility through teams. Continuous improvement comes from quality projects, benchmarking, and using data to measure outcomes.