Methods of risk evaluation in manufacturing systems

The production system was defined with regard to system theory. The risk concept was treated as synonym of unreliability. This kind of approach enabled decomposition of the production system into several areas and determination of reliability structure. The paper presents method of the risk value evaluation for serial-production structures and conceptions of weight coefficients in the method. The proposed method of risk evaluation may be helpful to determine the risk level in chosen production line and eventually for the whole enterprise manufacturing systems. The method was verified in a production enterprise, where there are manufacture cart frame for wagons, carriages and engines.