Evaluation of Cost-Increasing Wastes in Manufacturing Enterprises Using Integrated AHP-DEMATEL Methods

Abstract

Particularly in highly competitive business environments, ensuring efficiency and productivity in production processes is of great importance for enterprises to achieve their goals. From this perspective, identifying and eliminating wastes that lead to inefficiency in processes is critically important for businesses. This study aims to identify cost-increasing wastes in manufacturing enterprises, assign weights to them, and determine their levels of influence. In this context, six main criteria identified through an extensive literature review were analyzed using the AHP (Analytic Hierarchy Process) and DEMATEL methods after obtaining expert opinions. The findings obtained from the AHP analysis revealed that overproduction was the most important waste encountered in production processes. Increased waiting times and unnecessary transportation activities followed this criterion, whereas unnecessary movement had the lowest priority weight. The DEMATEL results showed that unnecessary transportation activities were the most significant affecting factor, while unnecessary movement was the most significant affected factor.