The paper analyzes the manager’s process of making decision on their own example of opening the trade. By the given fact, that the future owner of a massage parlor is in position that she has to make private (programmed) decision, which becomes uncontrolled manager decision, by the facts and circumstances. In the following, this paper analyzes the process of making a decision on the opening of private trade and analyzes the phases preceding the decision. Passing the theoretical part of the management decision-making, this paper examines the process of opening a private business, by analyzing the idea, the history, the massage effect on the human body and the psychological aspect of man. Considering all the aspects of opening a private business, an overview of the newly opened trades and services offered in it, as well as analysis of the business in the form of organizational structure, office space, business locations and the offer which is offered in crafts hut. The work gives an overview of the theoretical and practical part of the process of making managerial decisions. With simultaneous display of the theory of managerial decision making and display process of deciding on private business, it can be concluded that very useful to know the theory of decision-making and management decisions, as shown in theory can help us in which direction to turn the attention of the decision-making, something as a form of guidance that move to make business successful. The practical part of the management decision confirmed that the theory is highly applicable in practice and it anyone who wants to become a manager, the owner of them is supposed to adhere to business process was successful.