Petr Rehacek, Quality Costs in Management System, Journal of Engineering and Applied Sciences, Volume 12,Issue 22, 2017, Pages 6083-6087, ISSN 1816-949x, jeasci.2017.6083.6087, (https://makhillpublications.co/view-article.php?doi=jeasci.2017.6083.6087) Abstract: In process improvement efforts in Power Engineering, Construction Engineering, Textile Engineering, Industrial Engineering, etc., quality costs is a means to quantify the total cost of quality-related efforts and deficiencies. Quality costs are categorized into four main types: Prevention costs, appraisal costs, internal failure costs and external failure costs. The study presents the essence and usefulness of a quality management system in the process of managing a company which should lead to guaranteeing production growth and cost optimisation as well as a stable position on the competitive market. Keywords: Cost;management;quality;system;optimisation;market