This diploma thesis deals with business process simplification. Basic terms like business or process are defined in the theoretical part of the thesis as well as selected methods of business management such as TPS, KAIZEN, 5S, Six Sigma, etc. The principal concept for this work is described in the second chapter. It’s very important to simplify things and work, which means to identify the essential parts and eliminate the rest (waste). The practical part describes company Kuličkové šrouby Kuřim, a.s. (KSK) and the study of individual processes and impacts upon them. Further on, several process simplifications from various parts of the company are presented. Each individual case is described and analysed.