Üretim planlamada risk yönetimi

In this thesis, a problem of production planning and scheduling in the electronics industry is addressed with independent sequence and eligibility constraints. The planning processes of the company which produces LCD TVs and digital consumer products in the electronics industry are studied. A mixed integer linear programming (MILP) model is developed for the independent production planning. The proposed model aims to minimize penalty costs which arise from earliness and tardiness of the orders with eligibility constraints. A real case study is conducted to illustrate the applicability of the proposed model and solution methodology. Product variety is extending with ever-changing competition environment. High product variety, decreasing prices and short product lifecycles are the key parameters that define the characteristics of the consumer electronics industry. It has short product life cycles owing to developing technology. Therefore, the financial and demand-related risks are critical issues that should be considered to reserve the market share. The proposed MILP model addresses the production planning problem in the electronics industry by considering various uncertainties. Primarily, risk factors faced in the electronics industry are described. Consequently, two different risk management models are utilized on the MILP in order to conduct a risk management study. For this purpose, the mathematical model is reformulated and scenario trees are created. In the model, Conditional Value at Risk (CVaR) and Upper Partial Mean (UPM) models are applied for examining output of the risk scenarios. The possibilities of each scenario tree according to the determined risk factors are calculated and analyzed. Keywords: CVaR, UPM, electronics industry, production scheduling, risk management models