Gülfem Tuzkaya

Learn More
In this study, an integration of the analytic hierarchy process (AHP) and a multi-objective possibilistic linear programming (MOPLP) technique is developed to account for all tangible, intangible, quantitative, and qualitative factors which are used to evaluate and select suppliers and to define the optimum order quantities assigned to each. A(More)
The concept of a supply chain exists for over twenty years but partners and configuration selection process still is rather unstructured. In order to increase value in any supply chain, a more comprehensive and integrative approach is required to select the right partners and establish the right configuration along the chain. Under economic growth wrong(More)
Constructing a cell is a critical and important element of the cellular manufacturing problem. Generally, part routes are a helpful tool for this constructing process. Not to consider the alternative routes mean to undervalue the better cells. On the other hand, considering them may increase the complexity of the problem. In this study, in the existence of(More)
In this paper, we evaluate key outsourcing factors for selecting convenient suppliers in an electronic sector company. Outsourcing decisions are important strategic decisions and affected by multi-criteria. When we evaluate outsourcing problem, we need to collect a group opinion because to know the importance of key factors in considered outsourcing problem(More)
Environmental concerns, competition, economic factors, etc. motivates both academicians and practitioners to study on reverse logistics activities. Reverse logistics contains activities such as product returns, recycling, substitution, reuse, disposal, refurbishment, repair and remanufacturing. Product returns constitutes an important portion in total(More)