توسعه مدل مدیریت زنجیره تامین لارج- اثربخش با رویکرد پویایی سیستم ها

امروزه متخصصان زنجیره تامین برای افزایش رقابت‌پذیری، اثربخشی و کاهش مشکلات در زنجیره تامین به دنبال توسعه یکپارچه مدل زنجیره تامین می‌باشند. ازاین‌رو همواره به دنبال شناسایی و توسعه این فرایند هستند تا بتوانند جنبه‌های بیشتری از زنجیره را پوشش دهند. افزودن شاخص‌های اثربخشی در کنار شاخص‌های مطرح لارج و به‌کارگیری مبانی سیستم دینامیک برای ارتقا عملکرد زنجیره تامین ازجمله نوآوری‌های این مطالعه می‌باشد. ابتدا با استفاده از ادبیات تحقیق و مطالعات، 12 سرفصل از شاخص‌ها به‌عنوان شاخص‌های لارج اثربخش انتخاب شد. سپس با روش دلفی فازی ارتباطات و میزان اهمیت هریک از این مولفه‌ها مشخص شد و بازهم متغیرهای پراهمیت‌تر جهت بررسی بیشتر مدل شدند. بر این اساس با استفاده از مفاهیم دستگاه‌های پویا حلقه‌های علی معلولی ترسیم شد. سپس برای بررسی کارکرد مدل، فرضیه‌های پویا با نظر افراد خبره تدوین گردید. در گام بعدی دیاگرام جریان مدل و همچنین آزمون‌های اعتبار سنجی مدل پیشنهادی صورت گرفت. نهایتاً با بررسی خروجی‌های به‌دست‌آمده از سناریوهای پیشنهادی مشخص شد که اکثر متغیرها در حالت لارج اثربخش رفتار بهبودیافته‌ای دارند.

developing the larg-effective supply chain model using a system dynamics approach

nowdays, supply chain specialists are looking for the integrated development of the supply chain model in order to increase the competitiveness, effectiveness and reduce the problems in the supply chain. they always seek to identify and develop this process so that they can cover more aspects of the chain. adding effectiveness indicators along with larg indicators and using the basics of the dynamic system to improve the efficiency of the supply chain is one of the innovations of this study. at first, by using research literature and studies, 12 headings of indicators were selected as larg-e indicators. then, with the fuzzy delphi method, the relationships and importance of each of these components were determined, and more important variables were modeled for further investigation. with using the concepts of dynamic systems, causal loops were drawn. then, to check the function of the model, dynamic hypotheses were developed with the opinion of experts. in the next step, the flow diagram of the model and also the validation tests of the proposed model were done. finally, by examining the outputs obtained from the proposed scenarios, it was found that most of variables have better behavior in larg-e approach.introductionin recent years, with the addition of various competitions in the world markets, many researches have been conducted to use new technologies and researches in order to improve the production process and increase the effectiveness of these competitions as much as possible (mohghar et al., 2017). all the goals that work in this field increase the competitiveness of the organization. this competition is by reducing costs, being present in the market and satisfying the customer. to increase profits, protect the environment, keep the markets stable and meet the expectations of customers, organizations should be provided using the existing environments in a set of customers (pisha et al., 2016). use chain management requires the use of new facilities and improvements to previous findings such as lean, agile, resilience and green to increase speed and competitiveness, selection and decision-making to achieve the organization and maximum effectiveness.today, supply chain specialists are looking for the integrated development of the supply chain model to increase the effectiveness and efficiency of the supply chain in order to increase competitiveness and reduce supply chain problems. in this case, there is a consensus among experts that there is no comprehensive model. all the mentioned cases make it inevitable to design a comprehensive and effective model for the supply chain. the verifiable issue is the conflicts and the non-alignment of all the indicators of the paradigms with each other. larg paradigms, without considering the spirit of effectiveness in each supply chain, cannot fully protect it against continuous changes in the competitive market arena. a comprehensive model that pays particular attention to effectiveness while implementing larg paradigms has not been examined in the literature review and the consensus of experts. therefore, in this research, we are looking to design a comprehensive model in a larg-effective manner so that the effect of various larg-effective indicators on the performance of the supply chain can be investigated. the integration of larg paradigms has been studied a lot so far, but its development is based on the concepts of innovation effectiveness of this research, and in this way, the dynamic system approach was used.materials and methodsto formulate a larg supply chain, first the framework, indicators and variables of each larg paradigm were extracted from the research literature, then in order to develop them with effective concepts, the effective supply chain was studied.