Business Process Management is an important aspect in any kind of a business, as well as in educational institutions. Today, business process management has become a synergy of skills like management of programming systems and management of processes. Therefore, it is expected from all participants on the market to adopt this kind of thinking. Goal of this paper was to introduce the importance of business process management, to describe basic elements and characteristics of programming system YAWL, and to implement the process of issuing the travel warrants in a form of a specification using programming system for workflow modelling. The purpose of this paper was to demonstrate and prove that with the help of YAWL you can specify and model a process ready for use by creating a specification in a form of a prototype (or an example) which can further be optimised according to the needs of the institution. The paper is based on the ability to successfully specify, model, and implement a business process. The success also depends on the good organisation, IT knowledge, communicational skills, awareness of the activities one needs to handle and awareness of the activities of other participants in the process model which may require several cycles of trial and error to result in success and final implementation. Ultimately, the main contribution of this thesis is to provide an understanding of YAWL as a business process management tool and to provide insight to the reader or organization that is looking into the optimization of their processes using this tool.