University of Qom Journal of Engineering Management and Soft Computing 3116-0158 7 2 2022 09 23 Presenting and Solving a Three-layer Supply Chain Model to Maximize Quality and Minimize the Estimated Delivery Time -ارائه و حل یک مدل زنجیره تامین سه سطحی با هدف افزایش کیفیت و کاهش زمان تحویل احتمالی 145 177 1060 10.22091/jemsc.2018.1544.1046 EN Elham Nazemi MSc, Faculty of Industrial Engineering, Islamic Azad University, Naragh branch,Naragh, Iran Mahdi Yousefi Nejad Attari Assistant Prof., Faculty of Industrial Engineering, Islamic Azad University, Bonab branch, Bonab, Iran 0000-0002-5219-042X Mahdi Ghaffari Assistant Prof., Faculty of Industrial Engineering, Islamic Azad University, Naragh branch, Naragh, Iran Journal Article 2016 11 25 Today, the supply chain and evaluating its costs are of great significance. The number of layers of the supply chain and the structure of the interactions between these layers can play an important role in achieving the optimal performance of the supply chain. Besides, it is undeniable that service provision and product transportation from a chain layer to the next one do not take the same amount of time because due to different reasons such as transportation challenges, there would always be the possibility that transportation doesn’t go as planned.  Therefore, by proposing a multi-purpose model, this study seeks to maximize the profit and the quality of the products transported through the supply chain, as well as minimizing the total delivery time.  After presenting the model, it is solved by applying deterministic algorithms using GAMS software, and also NSGAII and MOIWO non-deterministic meta-heuristic algorithms using proper software. Then, these two solutions are compared with each other. Results indicate that MOIWO meta-heuristic algorithm is superior to NSGAII in all indicators except for the NPS indicator. https://jemsc.qom.ac.ir/article_1060_197ba823745aef0eb318d0de40db5570.pdf