Nowadays, Quality Management, or Total Quality, has become an objective for companies in order to improve their customer service, service provision and product manufacturing, making the search for information on the subject increasingly frequent. Books, case studies, articles, standards and documentation are being produced to facilitate this understanding and learning. Organisations analyse and compare their practices with all this material made available by entrepreneurs, executives and scholars, to assess whether they are heading in the right direction. If they are not, they hire specialised professionals who, using methods, diagrams and graphs, start working to correct and in some cases even start from scratch an entire process so that a satisfactory and productive result is achieved.