On a daily basis, business people face various problems and, accordingly, have to make various business decisions on a daily basis, which are mostly of an operational nature and which can be wrong due to subjective assessments. Successful business rules and analytical projects begin by focusing on business decisions. A transparent business goal is key to success in analytical projects, and the greatest success and best results are seen in business decisions that can be easily linked to your goals. Business policy analysis is defined by clarity about decision-making requirements, however, in this analysis the outcome is often a large amount of data that is difficult to monitor. Therefore, when the analysis of business rules is realized, making and understanding business decisions is much easier. In order to define and understand such business decisions, business analysts perform decision modeling. Decision modeling in quality business analysis has proven to be a key method that connects analytics and business rules and provides agility. It is also crucial in business decision management because it provides more detailed technical documentation that can be used as a template in a business organization by certain teams and thus speeds up the management process. In order to provide the constructs needed for decision modeling and for business decisions, by managers, to be represented by diagrams, the DMN model and decision notation are used.