ABSTRACT
Safety engineering is a fast developing discipline branch. The today modern technical and organizational systems have become so large and sophisticated that the safe management is nearly infeasible and exceeds capability of organizations that are established to be in charge of economy, industry and transport and others. The major objective of safety engineering, based on the system approach, is to understand the structure of safety management system, including the human factor, and all interrelationships between the system components. Major issues on safety engineering of any business include: selection of suitable tolerance zones of selected key operation parameters of the system, taking the human factor as a part of the system into account, possible risk under the system operation identification with taken under consideration the time and cost factor. Designing of complex business systems is always associated with the risk that
the system fails to reach the desired safety level and losses and damages shall be higher than the assumed acceptable level and the surrounding conditions may alter so much that the presumed respond measures and objectives of the system shall no longer be adequate.
