• Proceedings of the Society of Korea Industrial and System Engineering Conference
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• 2002.05a
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• pp.343-348
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• 2002

We are concerned with a long-term replenishment contract for the ARIMA demand process in a supply chain. The chain is composed of one supplier, one buyer and consumers for a product. The replenishment contract is based upon the well-known (s, Q) policy but allows us to contract future replenishments at a time with a price discount. Due to the larger forecast error of future demand, the buyer should keep a higher level of safety stock to provide the same level of service as the usual (s, Q) policy. However, the buyer can reduce his purchase cost by ordering a larger quantity at a discounted price. Hence, there exists a trade-off between the price discount and the inventory holding cost. For the ARIMA demand process, we present a model for the contract and an algorithm to find the number of the future replenishments. Numerical experiments show that the proposed algorithm is efficient and accurate.

• IE interfaces
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• v.17 no.2
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• pp.169-179
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• 2004

In supply chain management, supplier capacity is very important to meet the customer demand quickly. This paper studies a supplier evaluation structure and then suggests a methodology using fuzzy theory for selecting an effective supplier. Several quantitative and qualitative evaluation factors should be analyzed in the evaluation structure. The qualitative factors includes not only product and service qualities but financial condition. The methodology deals with both the quantitative and qualitative factors together through fuzzy inference. A case study is also presented to show how to choose the best one among potential suppliers.

• IE interfaces
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• v.17 no.1
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• pp.56-70
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• 2004

Expanding product variety and high customer service provision place an enormous burden on demand forecasting and the matching of supply with demand in a supply chain. Postponement of product differentiation has been found to be powerful means to improve supply chain performance in the presence of increasing product variety. Delaying the point of product differentiation implies that the process would not commit the work-in-process into a particular finished product until a later point. This paper reviews the recent analytical models that quantify the value of delayed product differentiation. We conclude the literature review by summarizing and synthesizing the economic evaluation of the postponement and outline directions for future research.

• Journal of Korean Institute of Industrial Engineers
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• v.27 no.4
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• pp.345-351
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• 2001

We are concerned with a multiple replenishment contract with a purchase price discount in a supply chain. The chain is composed of one supplier, one buyer and consumers for a product. The replenishment contract is based upon the well-known (s, Q) policy but allows contracting several firmed orders at a time with a price discount. Due to a larger forecast error of the future demand, the buyer should keep a higher level of safety stock to provide the same level of service of the usual (s, Q) policy but can reduce his purchase cost by placing larger quantity. Thus there exists a trade-off between the price discount and inventory holding cost. We present a model for the contract and an algorithm to find the optimum number of the firmed orders. Computer experiments show that the algorithm finds the global optimum solution very fast.

• Journal of Korean Port Research
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• v.13 no.2
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• pp.199-214
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• 1999

Recently leading edge companies use the Supply Chain Management as a competitive weapon to secure and maintain customer loyalty. As a consequency they are concentrating resources on the company’s core business and employing strategic alliances with third-party providers to ensure the company provides its customers’desired logistics service levels at acceptable costs. Under this circumstances this paper surveys the third party logistics as a leading edge logistics industry coping with the progress of the supply chain management. The status and the type of the TPL including the Forwarder are analyzed in the view point of global logistics. Also the development strategy of third party logistics in the future is suggested.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.38 no.1
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• pp.101-109
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• 2015

This paper suggests a procedure to define business process improvement (BPI) projects with analysis results based on the cause-and-effect chain. The procedure developed in this paper focuses on eliminating root causes of business problems resulted from abnormal events occurred in business process executions. First, we develop three criteria used to make clusters of the root causes where a cluster of root causes will be eliminated together by a BPI project defined based on the cluster. Second, we develop a method to formulate desired expectations from the BPI project. Also, we suggest a method to calculate the relative importance of the BPI projects that help a BPI organization determine priorities of them. We illustrate the procedure and the methods with some examples for the domestic mail delivery process in the postal service industry.

• International Commerce and Information Review
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• v.8 no.1
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• pp.325-336
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• 2006

This paper examines the global supply chain management strategy and business performance of Doolee Vision Co. Ltd.. Based on the analysis of eighty-seven cases, the following results were found. First, it was found that just-in-time of GSCM strategy of firm have a positive influences on the business performance in transformation sector. Second, just-in-time of GSCM strategy of firm have a positive influences on the business performance in custody sector. Third, just-in-time of GSCM strategy of firm have a positive influences on the business performance in order response and support sector. Forth, just-in-time of GSCM strategy of firm have a positive influences on the business performance in customs sector. Fifth, just-in-time of GSCM strategy of firm have a positive influences on the business performance in customer service sector. However, several limitations, such as measurement for intra-industry homogeneity, measurement for flexibility of global supply chain management strategy, and measurement for business performance of global supply chain management, that make the preceding conclusions be considered preliminary.

• Culinary science and hospitality research
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• v.6 no.1
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• pp.79-102
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• 2000

This study aims at providing restaurant marketers and decision-makers both the brand differentiation information and the useful clues to achieve the high market share through the various brand differentiation opportunities in multi-chain family restaurants. Sample surveys were conducted to 245 persons who had frequent using multi-chain family restaurants in Seoul. Method of survey used are telephone interviewing. The result of analysis was shown the marketer's performances on differentiation marketing, but that there were a lot of opportunities of differentiating the brand from others. Therefore, restaurant marketers and decision-makers should try to differentiate their brand along the lines of physical attributes, service, food quality, personnel, location, or image, in order to win the guest and then get the succession of their business.

• Culinary science and hospitality research
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• v.22 no.3
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• pp.183-197
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• 2016

This study was conducted to investigate the relationships among service quality, perceived benefit, perceived value and behavioral intention as perceived by franchise snack bars customers. The service quality of franchise snack bars' was tested in three sub-dimensions: environmental quality interaction quality, and outcome quality, which are based on Brady & Cronin's third-dimensional model. A total of 450 survey questionaires were distributed from March 9th to November 12th in 2015, of whi 411 questionnaires were deemed suitable for statistical analysis. SPSS 20.0 program was employed to conduct frequency analysis and reliability analysis, while AMOS 20.0 program was used to test the hypotheses. The results revealed that all three elements of service quality have a positive impact on perceived benefit. In particular, the outcome quality element had the greatest influence on perceived benefit. In sum, customers of a franchise snack bar considered outcome variables such as food taste, reasonable amount, and general quality of food as the most important factors to fulfill the benefit. This results suggest that Korean snack bar franchise companies need to consider improvements to outcome quality features, such as food quality. In addition, perceived benefit was a critical antecedent of perceived value, which was itself a significant predictor of behavioral intention. In conclusion, this study applied the means-end chain theory on franchise sank bar segmentation, as well as three dimension service quality model as developed by Brady and Cronin, and found results that will enable meaningful strategics for snack bar foodservice segmentation in pursuit of the development of efficient business plans, and that can be utilized as a theoretical data for future studies.

• Journal of the Korea Society of Computer and Information
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• v.13 no.4
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• pp.241-253
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• 2008

UCC(User Created Content) has brought about much change in the way Internet users produce, publish, and share digital content. That means that Internet users are participating in the UCC service much mure voluntarily, and interacting each other mure proactively to meet their social-psychological needs such as self-expression, social presence and so on. Also, there has been the sharp increase in variety and volume of digital content on Internet. The reasons why are that UCC enables Internet users to produce and publish their own content with much low cost, and lowers the entrance barriers to the digital content market. Like this, UCC causes the unbundling of the value chain of digital content, resulting in the high uncertainty and complexity, and then leading to the low healthiness of UCC value chain in terms of productivity, robustness, niche creation, and safety. Thus, this paper is to identify the status and problems of UCC value chain and present the way how to enhance the healthiness of UCC value chain more comprehensively and systematically.