• Title/Summary/Keyword: VMI

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Development of the Decision Support System for Vendor-managed Inventory in the Retail Supply Chain (소매점 공급사슬에서 공급자 주도 재고를 위한 의사결정지원시스템의 개발)

  • Park, Yang-Byung;Shim, Kyu-Tak
    • IE interfaces
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    • v.21 no.3
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    • pp.343-353
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    • 2008
  • Vendor-managed inventory(VMI) is a supply chain strategy to improve the inventory turnover and customer service in supply chain management. Unfortunately, many VMI programs fail because they simply transfer the transactional aspects of placing replenishment orders from customer to vendor. In fact, such VMI programs often degrade supply chain performance because vendors lack capability to plan the VMI operations effectively in an integrated way under the dynamic, complex, and stochastic VMI supply chain environment. This paper presents a decision support system, termed DSSV, for VMI in the retail supply chain. DSSV supports the market forecasting, vendor's production planning, retailer's inventory replenishment planning, vehicle routing, determination of the system operating parameter values, retailer's purchase price decision, and what-if analysis. The potential benefits of DSSV include the provision of guidance, solution, and simulation environment for enterprises to reduce risks for their VMI supply chain operations.

How VMI and Consignment Jointly Affect Supply Chain Performance

  • Ryu, Chung-Suk
    • Journal of Distribution Science
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    • v.13 no.3
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    • pp.31-39
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    • 2015
  • Purpose - Due to its potential to improve supply chain operations, supply chain collaboration has attracted significant attention from both academics and practitioners. This study focuses on VMI, in collaboration with consignment, and examines its impact on supply chain performance. Research design, data, and methodology - This study employs the analysis of mathematical models, formulated based on the proposed supply chain framework. Using numerical examples, it evaluates the performance of three supply chain systems: one including VMI and consignment, a consignment-only system, and a traditional system. Results - The combination of VMI and consignment produces greater supply chain benefits than the consignment-only and traditional systems. Whereas only the performance of the buyer improves with the consignment-only system, the system with VMI and consignment is beneficial to both the buyer and supplier. Conclusions - The results of this study reveal that the inclusion of the additional collaborative function of VMI makes consignment a better supply chain collaboration program. Future studies should examine issues regarding the testing of diverse collaboration programs and the building of a firm theoretical background.

A Case Study On Improvement of Inventory Efficiency by VMI (VMI 적용에 관한 재고효율 개선사례)

  • Lee Myeong-Bok;Hong Sang-Tae;Gang Gyeong-Sik
    • Proceedings of the Safety Management and Science Conference
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    • 2005.05a
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    • pp.417-428
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    • 2005
  • Recently, Vendor Managed Inventory(VMI) is commonly recognized as one of the supply chain application that delivers clear value to the sectors of electic& electronic Components. VMI is a process in which a supplier generates orders for its distributor based on demand information sent by the distributor. VMI is providing the benefits of smoother demand, lower inventories and reduced costs. This case study focused on Improvement of Inventory Efficiency by VMI. The results indicated that VMI allowed the company to serve its customers more surely and efficiently.

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Analysis of Vendor Managed Inventory System for Safety Appropriate Stock - Based on case study of 'D' Business - (안전 적정 재고를 위한 VMI 시스템 분석 - D사를 중심으로 -)

  • Lee Myong-Bok;Yang Kwang-Mo;Kang Kyong-Sik
    • Journal of the Korea Safety Management & Science
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    • v.7 no.4
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    • pp.179-191
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    • 2005
  • Recently, Vendor Managed Inventory(VMI) has been commonly recognized as one of the supply chain application that delivers clear value to the sectors of electic & electronic components. VMI is a process in which a supplier generates orders for its distributor based on demand information sent by the distributor. VMI is providing the benefits of smoother demand, lower inventories(work in process, safety stock) and reduced costs. This study focused on improvement of safety level inventory efficiency by VMI. The results indicated that VMI allowed the company to serve its customers more surely and efficiently.

A Case Study on Mobile Web-service Implementation for a VMI System of Small.medium sized the Auto-parts Manufacturer in Supply Chain (공급사슬관계에서 중.소 자동차부품제조업체의 VMI시스템에 관한 웹서비스구현)

  • Na, Sang-Gyun;Oh, Myung-Hyun;Jeong, Byung-Ho;Lee, Jun-Su
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.30 no.2
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    • pp.29-36
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    • 2007
  • This study was concerned about mobile web-service of a VMI in the SCM system. The VMI would be a main module part of the SCM and regarded as very important thing on supply chain. Therefore, it was essential to react in real time of materials production and situation of used auto-part in procurement company. We could find an affordable method to realize the VMI in a web service. The web service has made inter relevant enterprise easy to collaborate because of supporting most operating system and frame-work. Moreover, the use of a mobile tools was guaranteed a product recording and requirement of materials to real time in a rapid changing of production environments. The result of this research was very useful to apply the VMI system in medium and small sized auto parts company. This web service package has programmed the Visual Studio Dot Net 2003 and the MS SQL 2000 as database.

When VMI with Consignment Brings Benefit to Supply Chain Members?

  • RYU, Chungsuk
    • The Journal of Industrial Distribution & Business
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    • v.12 no.5
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    • pp.7-16
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    • 2021
  • Purpose: This study intends to examine how VMI with consignment performs over time and find out its on-going impacts on the individual supply chain member's achievement. Research design, data, and methodology: This study formulates the mathematical model that represents two-stage supply chain system. By analyzing the numerical examples, this study compares VMI with consignment with the traditional system. Results: VMI with consignment eventually makes higher supply chain profit than the traditional system, even though it's early performance is poor. The influence of VMI with consignment on the performance of the supply chain member is distinct depending on the individual member and time. The consignment may not be helpful to increase the system profit, but it reduces the manufacturer's burden of costs. Conclusions: VMI with consignment improves the supply chain performance after all, and it still takes times until its benefit becomes fully realized. To be a successful collaboration program, VMI with consignment requires a carefully designed incentive scheme that provides the timely compensation to the individual supply chain members. This study also finds out that the consignment contract of this collaboration program plays a role of financially supporting the manufacturer at the early stage of its implementation.

Intraspecies Volatile Interactions Affect Growth Rates and Exometabolomes in Aspergillus oryzae KCCM 60345

  • Singh, Digar;Lee, Choong Hwan
    • Journal of Microbiology and Biotechnology
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    • v.28 no.2
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    • pp.199-209
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    • 2018
  • Volatile organic compounds (VOCs) are increasingly been recognized as the chemical mediators of mold interactions, shaping their community dynamics, growth, and metabolism. Herein, we selectively examined the time-correlated (0 D-11 D, where D = incubation days) effects of intraspecies VOC-mediated interactions (VMI) on Aspergillus oryzae KCCM 60345 (S1), following co-cultivation with partner strain A. oryzae KACC 44967 (S2), in a specially designed twin plate assembly. The comparative evaluation of $S1_{VMI}$ (S1 subjected to VMI with S2) and its control ($S1_{Con}$) showed a notable disparity in their radial growth ($S1_{VMI}$ < $S1_{Con}$) at 5 D, protease activity ($S1_{VMI}$ > $S1_{Con}$) at 3-5 D, amylase activity ($S1_{VMI}$ < $S1_{Con}$) at 3-5 D, and antioxidant levels ($S1_{VMI}$ > $S1_{Con}$) at 3 D. Furthermore, we observed a distinct clustering pattern for gas chromatography-time of flight-mass spectrometry datasets from 5 D extracts of $S1_{VMI}$ and $S1_{Con}$ in principle component analysis (PC1: 30.85%; PC2: 10.31%) and partial least squares discriminant analysis (PLS-DA) (PLS1: 30.77; PLS2: 10.15%). Overall, 43 significantly discriminant metabolites were determined for engendering the metabolic variance based on the PLS-DA model (VIP > 0.7, p < 0.05). In general, a marked disparity in the relative abundance of amino acids ($S1_{VMI}$ > $S1_{Con}$) at 5 D, organic acids ($S1_{VMI}$ > $S1_{Con}$) at 5 D, and kojic acid ($S1_{VMI}$ < $S1_{Con}$) at 5-7 D were observed. Examining the headspace VOCs shared between S1 and S2 in the twin plate for 5 D incubated samples, we observed the relatively higher abundance of C-8 VOCs (1-octen-3-ol, (5Z)-octa-1,5-dien-3-ol, 3-octanone, 1-octen-3-ol acetate) having known semiochemical functions. The present study potentially illuminates the effects of VMI on commercially important A. oryzae's growth and biochemical phenotypes with subtle details of altered metabolomes.

Evaluation of Visual-Motor Integration in Elderly Patient with Diabetes Mellitus (노인 당뇨환자의 시각-운동 통합능력 평가)

  • Yun, Hyo Soon;Kim, Mi Ae;Kim, Mi Han;Suh, Soon-Rim;Kim, Hong
    • 한국노년학
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    • v.31 no.3
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    • pp.641-652
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    • 2011
  • The purpose of this study was to investigate the ability of visual-motor integration (VMI) in elderly patient with diabetes mellitus(DM). Male elderly (from 65 to 70 years old) with DM and non-DM disease were participated in this study. Participants were divided into three group (n=30 in each group): the control group, non-DM group, and DM group. Data were collected through VMI-3R questionnaires and interviews. Statistical differences among groups were determined by one-way ANOVA followed by Duncan Post-hoc test and results were expressed the mean ± S.D. or percentage (%). The present results showed that the score of both VMI 24 and VMI 50 in DM group were statistically lower than both the control and Non-DM groups. Also, the lower rate of correct and higher rate of error in VMI-3R was observed in DM group compared to both the control and Non-DM groups. The item analysis of VMI-3R revealed that the most higher rate of error was observed in item 24 in all groups. Based on these results, this study suggests that DM might aggravate the function of visual-motor integration in male elderly.

The Design and Implementation of a Vendor Managed Inventory System for Smaller Online Shopping Malls (중소 인터넷 쇼핑몰을 위한 판매자 재고관리 시스템 설계 및 구현)

  • Choi, O-Hoon;Lim, Jung-Eun;Na, Hong-Seok;Baik, Doo-Kwon
    • Journal of Digital Contents Society
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    • v.9 no.2
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    • pp.295-303
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    • 2008
  • With universality of e-commerce through internet, smaller online shopping malls are increased. A Smaller online shopping mall by nature lacks an extra space to load many inventory quantities. Therefore, it is difficult to response immediately with client request with traditional inventory management method. VMI has a character that supplier can control volume of inventory according to sales of seller. This paper proposes SOHO-VMI that is applied VMI into smaller online shopping mall. Proposed SOHO-VMI supports M $\times$ N structure can interact with multiple suppliers and sellers. And it uses XML/EDI for interaction with EDI documents use to legacy system. Also, This paper proposes logistics statistic prediction algorithm can adjust production and distribution volumes to supplier considering seller's product distribution information and seasonal factor.

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Modeling and Analyzing One Vendor-Multiple Retailers VMI SC Using Stackelberg Game Theory

  • Golmohammadi, Amir-Mohammad;Javid, Negar Jahanbakhsh;Poursoltan, Lily;Esmaeeli, Hamid
    • Industrial Engineering and Management Systems
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    • v.15 no.4
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    • pp.385-395
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    • 2016
  • Game theory is a powerful tool for analyzing the Supply chain (SC) with different conflicting elements. Among them, the Stackelberg game is the one in which a player as leader has more power than the other ones as followers. Since in many SC systems one element has, in essence, more power than the others; the Stackelberg game has found many applications in SC studies. In this paper, we apply the Stackelberg game-theoretic approach and the corresponding equilibrium point to formulate and analyze a two echelon VMI SC. Comprehensive computational results on an experimental case are conducted to numerically analyze the performance of VMI system against three groups of critical parameters. Moreover, a critical comparison demonstrates the poorer performance of decentralized VMI system than centralized one. This naturally necessitates designing proper contracts between VMI partners in order to more effectively implement the realistic decentralized system.