This document defines key concepts related to Total Quality Management (TQM). It defines quality according to different perspectives, lists the dimensions of manufacturing and service quality, and defines TQM. It also outlines the six basic concepts required for a successful TQM program, and tabulates the tangible and intangible benefits of TQM. Additionally, it provides the principles of TQM, obstacles to implementation, the need for quality, pillars of TQM, and differences between traditional and TQM culture. Key terms like quality circles, cause and effect diagram, zero defects, and quality loss function are also defined.