Fundamentals of Quality Concept: Literature Review

Abstract

Quality is defined predominantly as one of the companies' key processes. It's declined on many structural levels and interacts necessarily with other functions in order to achieve the overall performance of the system. The purpose of quality management is to maintain a desired level of excellence in production and services in order to satisfy the customer. However, the concept of quality as we know it today has not been the same, it has undergone enormous changes starting with quality control and focusing today on achieving the global excellence of the company. In this context, this paper will describe the evolution of quality control as a key factor in the company and how we can transform this concept to global performance by using fuzzy logic as a new approach for reasoning and taking into account operator experience and uncertain information to describe a manufacture system and then optimize its performance in term of product quality and process reliability.