APPLICATION OF USER INTERFACE FUZZY LOGIC TOOLBOX FOR QUALITY CONTROL OF PRODUCTS AND SERVICES

Abstract

In this work, the solution for the quality control of products and services is illustrated for the first time on examples of wine production and the provision of educational services in the university by creating a heuristic analyzer based on the Fuzzy Logic Toolbox interface of the Matlab program. There were also considered the problems of constructing quality control models with fuzzy logic for solving problems arising in cases when it is not possible to use classical statistical methods. The factors influencing the quality of products, in particular wine, and services on the example of providing education are analyzed, the possibility of using the fuzzy logic apparatus for determining the weight contribution of factors that ensure maximum quality is proved. Computer simulation using the Mamdani algorithm is performed, which consists of fuzzification with the definition of ranges of change of input values for each example, assigning the distribution functions for each input parameter; calculation of the rules, based on the adequacy of the model; defuzzification with the transition from linguistic terms to quantitative evaluation; graphical construction of the response surface using a centroid method with determination of the center of gravity of the response surface. The modeling has confirmed that the creation of a heuristic analyzer for determining the quality of wine and the quality of education is appropriate and necessary for preventing the production of substandard products and the provision of substandard services.

Keywords

• fuzzy logic
• heuristic analyzer
• fuzzification
• defuzzification
• quality control