Quality can be defined as customer satisfaction and exceeding consumer needs together with achieving a competetive advantage in the market for the observed company. Globalization of the market and consumers with specific requirements and preferences have conditioned providers of products and services in the hospitality sector to create business systems that are tailored to customer needs. The quality management system has a primary role in the hospitality sector in order to meet the expectations of consumers and meet their needs. This paper is conceived on a detailed presentation of the quality system in the hospitality sector together with an explanation of its characteristics. Also, quality management principles are presented helping organizations in improving their own results, constantly monitoring customer behavior in the target market. The implementation of quality management systems has become one of the dominant tasks of many organizations in the service sector in order to achieve business excellence, or profit that allows the realization of funds for the current operations of the company. As a leader in the hospitality sector of fast food preparation, the company McDonald's stands out, which by successfully implementing a quality management system achieves a competitive advantage in the global market and proves the need to ensure and promote quality in business organizations.