Computer fuzzy model regarding pharmacies integral perceptions by visitors

Abstract

The paper considers the development of a computer model for the task of determining consumer estimates of pharmacy institutions by visitors and clients in terms of quality and service conditions. The main criteria and parameters for such an assessment were chosen, and their hierarchical tree was constructed. Then, the units of measurement and the ranges of the parameters to be evaluated were determined. Given the lack of certainty of opinions and assessments of consumers, it is advisable to solve the problem on the basis of fuzzy modeling methods. Thus the most appropriate computer simulation tool, the FuzzyTECH specialized software has been chosen. In this environment, an appropriate model has been created. For this, input and output linguistic variables, as well as their terms, have been dened. Then the corresponding membership functions and fuzzy logic inference rules were constructed. Further, the corresponding surfaces of the fuzzy inference were obtained. The developed computer model was tested during the evaluation of a group of pharmacies in the city of Kharkiv. The calculated resulting estimates are fairly close to those obtained using other, more cumbersome methods. The approach described and the model presented showed fairly valid results, despite its relative simplicity. Thus, the described implementation of the fuzzy-multiple model of generalized customer service evaluation in pharmacy institutions is a very useful practical computer tool for solving problems of improving the level of pharmaceutical service. The proposed computer model is also applicable to other tasks of assessing the quality of service in conditions of uncertainty.