For any business to prosper and succeed the quality of the product or service they provide should be optimum. This is ensured by quality management systems. It refers to the process of checking and re-checking the quality, consistency and condition of products the company is offering to the customers. It has four main sub-fields namely quality improvement, quality planning, quality control and quality assurance. This book attempts to understand the multiple branches that fall under the discipline of quality management and how such concepts have practical applications and importance. It is compiled in such a manner, that it will provide in-depth knowledge about the theory and practice of these processes. This textbook is an essential guide for both academicians and those who wish to pursue this discipline further.