• Journal of the Korean Geographical Society
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• v.42 no.3 s.120
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• pp.434-452
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• 2007

The globalization of the economy has strengthened competition in all industries. Facing an intensely competitive environment, the firm's choice of location is one of the most important strategies in enhancing its competitiveness. This paper aims to examine the locational changes and the spatial restructuring of suppliers firm with regard to modularization and customer diversification which result from the process of assembler's restructuring after the financial crisis. Some experimental findings which have been identified throughout this study can be summarized as follows: First, a number of suppliers has been located in the southern Seoul metropolitan area and northern Chungcheong area. And Hyundai's suppliers has been enlarged in the Seoul metropolitan area and Kia's in the Southeastern area. Second, suppliers who transact with several assemblers(network trade) tend to be more dispersed, but dedicated(exclusive) suppliers are more concentrated on assembly plants. Also it was confirmed that 'JIS(Just In Sequence)' system which is more detailed than 'JIT(Just In Time)'system has been used. Third, it was Prominent that suppliers are internalizing in order to reach economies of scale compare to assemblers are externalizing.

• The Journal of the Korea Contents Association
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• v.11 no.1
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• pp.317-328
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• 2011

Logistic system and methods of the transportation have been changed rapidly by the variety of the logistics environment. It is necessary to analyze the efficiency of Korean trucking companies for enhancing the competitive power and operating. This paper will describe the analysis of the efficiency of the trucking companies with DEA models. By the CCR and the BCC models, which are in parts of DEA model, the efficiency and RTS(Return To Scale) of forty two selected trucking companies were studied. It was also analyzed how the study the input-output variables were effected. And then, some of the forty two trucking companies were shown as the benchmark. As the result of analysis on the two models, seven companies won the score '1' on CCR model and seventeen companies on BCC model. Moreover, this study showed that reducing the total asset out of input variables, and raising the sales profit out of the output variables played a main role to increase the efficiency of the trucking companies highly.

• IT SoC Magazine
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• s.3
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• pp.12-20
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• 2004

• 한국IT서비스학회:학술대회논문집
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• 2003.11a
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• pp.427-432
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• 2003

효과적인 중소기업 생산정보화를 위하여 시스템 개발 과정을 표준화하고 단계별 주요 활동에 관한 연구, 프로젝트 범위 일정 비용 인적자원 관리를 위한 WBS 작성, 시스템의 신뢰성 품질 생산성 향상을 위한 관리 항목 설정, 중소기업 IT업체 감리업체 등 참여기업간의 의사소통, 그리고 구축된 생산정보화의 유지보수를 포함한 운영지원 등 보다 체계적이고 효율적인 시스템 구축을 위해 중소기업 생산정보화에 적합한 시스템 개발 방법론(PSDM : Production System Development Methodology)에 관하여 연구 개발한다. 이 PSDM의 연구로 생산정보화를 구축하고자 참여하는 많은 중소기업 및 IT업체들이 표준화된 방법론을 이용하여 시스템 구축을 보다 효과적으로 수행할 수 있으며, 보다 높은 신뢰성을 가진 시스템을 구축할 수 있다.

• Proceedings of the Korea Database Society Conference
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• 2010.06a
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• pp.21-31
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• 2010

중소기업은 변화하는 경쟁 환경에 능동적으로 대처하고 경쟁력확보와 생산성 향상을 위하여 IT를 기반으로 하는 다양한 생산정보시스템을 도입, 운영하고 있다. 이에 따라 효율적인 중소기업 생산정보화를 위하여 시스템 개발 과정을 정형화하는 생산정보시스템의 표준화가 요구된다. 특히 중소기업, IT업체, 감리업체 등 참여 기업 간의 의사소통, 그리고 구축된 생산정보화의 유지보수를 포함한 운영지원 등의 체계적이고 효율적인 운영을 위해서는 생산정보시스템의 개발 방법론 (PDSM)이 필요하다. 이에 따라 중소기업기술정보화진흥원에서 생산정보화시스템개발방법론(PSDM)을 개발하여 보급하고 있다. 본 연구에서는 정부가 지원하는 중소기업 생산정보화지원사업에 참여한 기업을 대상으로 생산정보화시스템개발방법론(PDSM)을 적용한 IT 업체의 적용사례를 통해 방법론의 활용에 따른 생산성 향상 및 작용 시 고려사항에 대해 살펴본다. PSDM은 효과적인 중소기업 생산정보를 위하여 시스템 과정을 표준화 하고 단계별 주요 활동에 대한 연구와 함께 프로젝트 범위, 일정, 비용, 인적자원 관리를 위한 WBS(Work Blockdown Structure)작성, 시스템의 신뢰성 품질, 생산성 향상을 위한 관리 항목 등의 내용을 포함하고 있다.

• Journal of the Korean Institute of Gas
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• v.19 no.4
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• pp.15-21
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• 2015

Looking at the large and small fire, explosion, or release accidents that occurred recently, we can see that the accident of subcontractor workers has been increased in the contractor workplace while a harmful or dangerous maintenance works. In this study, the actual status of subcontractor's safety management was examined by using the questionnaire to the contractor who submitted the process safety report. In order to improve the safety management of subcontractors, the responsibility and rational role-sharing between the contractors and subcontractors were reviewed. Also, Providing safety and health information and worker protection measures during maintenance were investigated. The results of this study can be used to help strengthen and improvement safety management of the subcontractor at the time of a hazardous or dangerous works. In addition, it will be utilized to reduce industrial accidents and to build mutual cooperation relationship between contractor and subcontractor.

• Journal of Korean Society of Forest Science
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• v.80 no.1
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• pp.72-81
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• 1991

This study was carried out to provide necessary information for improving quarrying industry management in Korea. The results of the study are summarized as follows : 1. In aggregate and building-stone quarrying firms the managers over 40 years of age are 97% and 89.1%, the ones above education level of high school are 90% and 85% and the ones not more than 10 years of quarrying experience are 70% and 52%, respectively. Accordingly it can be pointed out that most of the managers of two types of firms are relatively old, have high educational background, while quarrying experiences of building-stone firm managers are longer than that of aggregate firm managers. 2. Most of the management forms are social corporation(60%) for aggregate quarry firms and private management(76%) for building-stone firms. Average areas of permitted stone-pits of aggregate and building-stone quarries are about 2.86ha and 1.66ha respectively. That is, aggregate quarrying firms are carried on a larger scale than building-stone quarrying firms. 3. The yearly average product of aggregate quarrying firms has increased steadily from $88.961m^3$ in 1985 to $144.028m^3$ in 1988, while, in case of building-stone quarry firms, it has significantly increased from $4.155m^3$ to $19.462m^3$ from 1985 to 1987, but reduced to $13.400m^3$ in 1988. Unstable production activities of building-stone quarrying firms may require continuous government support. 4. Major cost items are equipment rental, depreciation, salaries, repair, maintenance for aggregate quarrying firms, and salaries, depreciation, fuel, tax for building-stone quarrying firms. The yearly average rate of return is about 9.7% for aggregate quarry firms and 2.6% for building-stone quarry firms. It can be pointed out that aggregate quarrying firms is better managed than building-stone quarrying firms. 5. The production elasticity of salary for aggregate quarrying firms is 0.495, that of employees is 0.559, and that of capital service is 0.513. The sum of the elasticities is 1.257>1. Fur building-stone quarrying firms, that of employees is 0.492, that of variable costs is 0.192, and that of capital service is 0.498. The sum of elasticities is 1.172>1, thus denotes the increasing returns to scale for both types quarrying firms. 6. The ratio of marginal value product to opportunity cost of empolyees is 2.54, that of variable costs is 3.62, and that of capital service is 1.45, in aggregate quarrying firms. That of employees is 2.47, that is variable costs was 2.34, and that of capital service is 19.67 in building-stone quarrying firms. Therefore the critical factors for more expansion of management scale in aggregate quarrying firms are variable cost and employees, and are capital service in building-stone quarry ing firms. 7. The break-even points of stone sales are about 0.587 billion won and 0.22 billion won in aggregate and building-stone quarrying firms respectively. The optimum sales Level for profit maximization are about 2.0 billion and 0.5 billion in aggregate and building-stone quarry firms respectively.

• Convergence Security Journal
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• v.12 no.5
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• pp.87-97
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• 2012

Privacy of personal information disclosure incident occurs frequently as a problem to our society's most important and sensitive social agenda is emerging. Personal information is actually more accurate, depending on the type or types of economic value and sensitivity, the quality of the information, because it can cause a spill a serious social threat and systematic personal information protection and management are not carried out and the information society in a big mess can result. Customers my affairs when small guard security companies, especially the sensitive personal information of customers who need to work, the collected information be leaked or the company's trade secrets, are exposed on the outside, it could be a serious threat to a greater problem cause. Small escort guard companies, however, compared with large companies to build its own security system, due to issues such as the extent of funding, staffing shortages, there are many difficulties. Status of Information Security, scale and analyze the characteristics of small escort guard companies occupied by guard security companies in the present study, sleep, look at him in the solution of the practical issues of information protection system laid small guard. Expenses supplier of propose a security system for preventing the leakage of personal information.

• Journal of Korean Society of Transportation
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• v.20 no.2
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• pp.59-68
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• 2002

Using 1996 annual observations for 69 bus firms in Seoul, this paper measures firm-level efficiency with data envelopment analysis(DEA) and identifies firm characteristics indicative of differential efficiency in these firms with Tobit regression analysis. The paper then conceptualizes that these firms produce two kinds of output(city/seat bus kilometers or city/seat bus Passengers) using four inputs (labor vehicle, fuel and maintenance). The findings show that, on an average, these firms have only a little input saving potential of 0.9 percent, while not a little output increasing potential of 12.9 percent. On the other hand, it is discovered that these firms operate more efficiently with a lower ratio of maintenance employees to total employees. Furthermore, it appears that both the ratio of seat buses to total buses and average speeds positively affect efficiency in this industry.

• Journal of the Economic Geographical Society of Korea
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• v.14 no.2
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• pp.225-239
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• 2011

The main purpose of this paper is to analysis the growth process of new emerging Korean society in Georgia, the USA by investigating changes in the regional distribution of Korean business located in metro Atlanta region. More specifically, it aims to identify the characteristics of spatial distribution of Korean business in metro Atalanta through their locational trends since 1980s. To this end, it has explored the history of Korean migration into Georgia and the locational trends of Korean firms in metro Atlanta by industries. As a result, the main location of Korean firms has expanded into the northeastern regions of Atlanta due to the development of transportation, new regional development, education environment and changes in residential distribution by ethnic. Also, the main Korean business has transformed from retails and restaurant to real estate and finance because of changes in market strategies, institutions and Korean local migration.