Improving quality and reducing costs in supply chain: The developing VIKOR method and optimization

In today's competitive world, the quality of raw material plays a significant role in success organizations. Since materials is factor that leads to reduction return products, selection supplier's problem has always been daunting challenges supply chain. The multi-criteria group decision-making (MCGDM) preferences over criteria, and suppliers are highly dependent on opinions experts. real decision-makers cannot express their with certainty. this study, novel hesitant fuzzy linguistic Term set Vlsekriterijumska Optimizacija I Kompromisno Resenje (HFLTs-VIKOR) approach proposed for solving supplier problems information. regard, new context-free grammar proposed. present due impact environmental issues amount product waste investigated using method. Then, designed model, an appropriate ordering policy identified minimize costs maximize value at chain, production, distribution levels. Finally, efficiency presented method verified through case study data.