Resumen
In accordance with the Serbian legislation, occupational safety is the provision of such working conditions that, to the possible extent, reduce injuries at work. It is further stated that occupational injuries can be caused by exposure of employees to hazards, and risk is defined as the probability of injury to an employee. In engineering practice, however, the risk is commonly expressed as product of probability of the occurrence of an adverse event and the weight of the consequences of that event. The definition expressed by the risk management standard introduces the concept of objective, which is a significantly different concept. Since a concept discussed necessarily needs to be defined, this paper attempts to give an overview of the key efforts to define risk, to show differences and conditions, in order to enhance the understanding and work on the subsequent analysis and risk management, as well as to improve occupational safety.