Reduction of emergency risk on a production object

The method of definition of emergency risk on the base of the system analysis and design methodologies of decision support systems is offered in the paper. The classification of factors influencing upon arising of an emergency, is done. The index of object state, defining the influence of the factor on arising of an emergency, is given to each factor. An optimal set of actions to reduce the risk is defined on the base of production knowledgebase and influence of the action reflecting its introduction efficiency.