Evaluation of the Effectiveness of the Occupational Health and Safety Management System Using Fuzzy Logic Methods (Harrington Desirability Function)

The paper presents a methodology for evaluation the effectiveness of an occupational safety management system using fuzzy logic methods—calculating the Harrington desirability function. This function is used to describe criteria and constraints in solving multi-criteria problems and allows you to establish a correspondence between linguistic assessments of the desirability of the values of the evaluation indicator (expert assessment) and numerical preference intervals. The use of Harrington's desirability function makes it possible to bring all evaluation indicators to unified values and compare particular indicators measured on different scales (numerical, verbal, etc.). This makes it possible to adapt this assessment methodology to the conditions of various organizations and implement it into expert decision support systems for decision makers in the field of ensuring occupational health and safety at enterprises. An example of calculating the Harrington desirability function for the performance indicators of the labor protection management system for a light industry enterprise is shown. The above methodology can be used to introduce the rating of departments of large organizations in terms of the effectiveness of the occupational health and safety management system.