This master thesis deals with the topic of business process modeling using the example of a home for the elderly and infirm. The aim of this paper is to show the historical development of business process modeling, and to show, by way of example, how business process modeling looks in practice. Various methods of data collection were used in the preparation of this paper. The theoretical part of the work was written with the help of professional literature in Croatian and foreign languages. While the creation of examples was based on the company's internal documentation. The models of business processes in the home for the elderly and infirm were created on the basis of the BPMN standard. The Camunda Modeler tool was used for modeling. The paper thoroughly describes the components of the BPMN diagram for a better understanding of the model. The structure of the work is divided into five chapters. The first part is an introduction, which introduces the reader to the subject and goal of the work. In the second unit, the concepts of business process management and business process modeling are covered. The third chapter focuses on the methods that can be used in modeling. In the fourth chapter, the theoretical part is presented in practice, while in the last chapter, the synthesis of the entire work is done.