The contribution of multi-objective goal programming for decision problems and an application in production process

Decision making mechanism has importance for both personal life and companies. Companies have goals to reach. Most of the time on course to reach these goals decisions that they have to make is related to uncertain data rather than explicit figures. They have to give vital decisions for their self's sake with those uncertain datas. By giving these decisions they expect optimal results in order to reach their goals, however usually, that is not exactly possible. Besides by using uncertainties and constraints on the objective, it is possible to develop fuzzy logic to find optimum solution. In order to evaluate the uncertainty; fuzzy set theory, which is predicated on many-valued logic, had developed by L. A. Zadeh in 1965. Nowadays this theory is being used to solve various problems. In this work, corn oil amount that an oil company in İzmir has to produce for company goal had evaluated by using both "fuzzy logic in Minmaks Goal Programming" and "Fuzzy Goal Programming – MA approach" and the results have compared. It is showed that the results are close to each other and by commenting on these results suggestions had been made for the company's goals. Keywords: Multi-Objective Goal Programming, Fuzzy Goal Programming, Fuzzy Logic, Decision-Making Process.