Total Quality Management (TQM) is a philosophy and set of guiding principles for continuous improvement of processes within an organization. It focuses on customer satisfaction through an integrated system involving tools, techniques and training. The key concepts of TQM include management commitment, customer focus, quality at all levels, continuous process improvement, treating suppliers as partners, and performance measures. Important contributors to TQM include Shewhart, Deming, Juran, Feigenbaum, Ishikawa, Crosby and Taguchi. TQM aims to exceed customer needs now and in the future through conformance to requirements and prevention of non-conformance.