Customer satisfaction is a must have when we want them to become loyal customers. Loyalty is the right key for achieving better business results and by increasing the number of satisfied customers the industry can grow as a whole. Loyal customers are the ones who buy products and regularly pay their bills. Also, they are the ones who often put quality in the first place when they choose their subcontractors, because they believe in the quality of service that will be provided to them. The process to keep loyal customers should be of primary interest to every production system, as it is not easy to be achieved, especially if one is running its business in a highly competitive environment.