• Proceedings of the KIEE Conference
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• 2005.11b
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• pp.201-203
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• 2005

본 논문에서는 주파수제어보조서비스의 제공에 대한 비용평가 산정방안을 제안하여 향후 도매전력시장에서 이루어질 계통운영자와 주파수제어보조서비스 제공자 간의 보조서비스 계약 시 계약단가에 대한 합리적인 수준을 제시하고자 한다 이를 위하여 국내 도매전력시장에서의 주파수제어보조서비스 항목에 대한 단가를 추정하기 위해 호주와 영국의 전력시장 운영사례를 통해 주파수제어보조서비스가 차지하는 비율을 이용하여 보조서비스의 거래금액을 추정하고 서비스 제공 항목별 단가를 산정하기 위해 주파수제어보조서비스 분류(안)에 해당 서비스의 요구량을 모의 산정하여 비용을 평가하였다.

• Journal of the Korean Society of Food Culture
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• v.10 no.1
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• pp.29-34
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• 1995

본 연구의 목적은 병원급식소의 세정작업의 효율적 관리를 위하여 위탁 전과 후의 비용효과를 비교하고 자가운영과 위탁운영체제의 세정담당 종업원들의 직무만족도를 비교하여 그 비용효율성을 분석하는데 있다. 본 연구의 결과에 의하면, 세정작업의 위탁관리로 다음과 같은 잇점을 기대할 수 있었다. 첫째, 호봉이 낮고 적은 수의 종업원 이용으로 인건비의 절감을 기대할 수 있었으며, 둘째, 봉급에 관한 항목을 제외한 다른 항목에 관해서는 자가운영과 위탁운영 체제의 세정담당 종업원들의 직무만족도에 유의적 차이가 없는 것으로 나타났으며, 세째, 작업일정이나 인사배치에 있어서의 용이함으로 나타났다. 이 연구 결과를 기초로 병원급식소의 위탁관리 프로그램에 관한 지속적인 평가와 개발에 관한 연구가 이루어져야 할 것이다.

• Korean Journal of Construction Engineering and Management
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• v.4 no.4 s.16
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• pp.212-219
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• 2003

In construction project planning and control, a cost model performs a critical role such as cost determination on a contract stage and cost tracing. The model can maximize owner's profit and value within the project budget and optimize cost management works on overall construction implementation stages. A BoQ(Bill of Quantities) generally adopted in a unit price contract has been applied as an important tool for cost control and forecast. However a previous cost model based on the BoQ has shown limitations in that it requires too detailed information and heavy manpower on cost management and difficulty in keeping relationship with construction planning, scheduling and progress management. The each cost items and unit prices which constitute of construction works are individually very important management factors but the relative weight for each items and prices have a difference on the contents and conditions of each conditions of each construction works. In consideration of this structural mechanism of cost determination, this research is aimed at examining the critical factors affecting the construction cost determination and propose and verify a new cost forecasting model which is more simple and efficient and also keeps the accuracy of cost management.

• Proceedings of the Safety Management and Science Conference
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• 2003.11a
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• pp.15-20
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• 2003

본 연구에서는 계절별 기후인자를 고려하여 정성적 및 정량적 위험성 평가를 실시하여 사고 시나리오를 설정하였고, 비용-편익분석을 실시하여 사고 시나리오별 안전관리 비의 효율을 분석하였다. 그 결과, 최악의 시나리오는 비정상조업에서 유지보수 오류이었고, 가능성 있는 시나리오는 HAZOP 구간#4에서 발생되는 가스 누출사고이었으며, 각 사고 시나리오에서 전체 안전관리 투자비에 대한 편익/비용은 0.043과 0.13이었다. 이때 각 사고 시나리오에서 비용 효과적인 안전관리 항목을 평가할 수 있었다.

• The Journal of Society for e-Business Studies
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• v.22 no.3
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• pp.57-74
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• 2017

The Electronic Shelf Label (ESL) is an alternative to the paper price label attached to merchandise shelves and is attracting attention as a retail IoT infrastructure that will lead the innovation of offline retail outlets. In general, when introducing a substitute product, the company tends to consider the financial factors such as the efficiency of the investment cost compared to the existing product or the reduction of the operating cost. However, considering only financial factors in the decision-making process, it may not properly reflect the various values associated with corporate strategy and the requirements of stakeholders. In this study, 8 evaluation items (Investment Cost, Operating Cost, Quality Level, Customer Management, Job Efficiency, Maintenance, Functional Expandability, and Store Image) based on BSC's 4 perspectives (Financial, Customer, Internal Business Process, Learning & Growth), and using AHP (Analytic Hierarchy Process) to measure the priorities of evaluation items for domestic small supermarket employees. As a result of the research, priority was given in order of Customer, Learning & Growth, Internal Business Process, and Financial aspects among the evaluation items for adopting the price label, and the electronic price label was supported with higher importance than the paper price label. In contrast to the priorities of the financial aspects of most prior studies, the items of Learning & growth and customer perspectives have relatively high priorities. In particular, respondents classified by job group, The priorities of the 8 evaluation items were different among the groups. These results are expected to provide implications for both companies (retail outlets) and ESL providers (manufacturers and service providers) who are considering the introduction of ESL.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.10
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• pp.48-54
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• 2020

DMSMS (Diminishing Manufacturing Sources and Material Shortage) is increased by developing the scientific technique and downsizing the military part market. DMSMS affects the increase in total life cycle costs and serviceability. Therefore, advance control for parts is important to reduce the cost, and a database is needed to share information on the DMSMS. A task needs to be performed continuously by setting the major control item to management more efficiently. The purpose of this study was to deduce the major control item for the DMSMS management system. Thus, the pre-control item basis of the DAPA (Defense Acquisition Program Administration) Manual and the SD-22 Manual were first selected, and the results of the survey were analyzed by AHP (Analytic Hierarchy Process) method. Fifteen of the detailed items were stratified into three criteria (Impact, Probability, and cost of the DMSMS), and each weight for the items was calculated using a nine-point scale survey. The AHP survey was executed with 25 specialists in the DMSMS management field, and the score of consistency ratio over 0.1 was excluded. The model explained the results and suggested future directions for development.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.7B
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• pp.660-667
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• 2006

Voice over Wireless LAN (VoWLAN) is defined as a communication service which transmits voice over wireless LAN. Due to its capability of providing high quality service while reducing communication costs, the VoWLAN is expected to be widely introduced to hospitals, hotels, and many more industry sectors. However, despite the increased interest in the new service, there has been limited research on the economic assessment of deploying VoWLAN. This paper provides a systematic and quantitative approach to the return on investment (ROI) analysis of VoWLAN service. We first analyze the domestic and international market trend of VoWLAN. Then, implementing scenarios of VoWLAN and corresponding alternatives are established. For each scenario, cost and benefit analysis is conducted. The proposed framework is implemented by using VBA program. To validate the result of the analysis, a case study is also conducted.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.2343-2358
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• 2008

The modal spilt for road has been increased, but, for railroad it has been decreased from 17.2%(1990) to 6.3%(2006). It is important to study on improving competition for railroad transportation so that freight transport industry for railroad which is getting to decrease in Korea will be increased. The objective of this study is to analyze the competitiveness of railroad transport compared with road by providing a high-speed railway. The indicators representing the competitiveness of railroad transport are determined. The main influenced factors for mode choice include transport cost, transport time, level of service. Precisely, three commodities type, container, cement, steel, are analyzed.

• Korean Journal of Construction Engineering and Management
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• v.13 no.6
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• pp.71-83
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• 2012

The use of technical proposal tendering has been expanding recently with the aim of effecting cost reduction, quality enhancement, technological development and value realization centered on multifunctional administrative cities, innovation cities, and the Yongsan relocation project. In line with the increasing interest towards life cycle cost improvement measures as an important evaluation category concerning technical proposal tendering, efforts in preparing measures that can execute the security of credibility and objective evaluation concerning architectural life cycle cost are being made. However, problems such as lack of applicable cases of design development and detail design, distortion of initial construction costs concerning the original plan, combination of constant price and current price, the ambiguity of the calculation standards between tendering corporations, inaccuracy of terms, and insufficient compositional formats concerning life cycle improvement measures are being cited. Accordingly, this study sought to propose a measure to improve the compositional guidelines, format, and standards so that a systematic life cycle cost evaluation can be executed for the reliable distinction of each participating corporation, enhanced credibility and objective evaluation of the life cycle cost improvement measure for technical proposals.

• The Korean Journal of Financial Management
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• v.14 no.3
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• pp.137-156
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• 1997

본 연구의 목적은 최근 자본비용 추정에 대한 신뢰성 및 정확성에 대한 비판에도 불구하고 주로 미국과 일본 등을 중심으로 기업전체를 대상으로 한 과거의 연구에서 벗어나 한국의 상장기업을 대상으로 좀 더 미시지적이고 정교한 자본비용을 추정하는 데에 있다. 1981년 이후 1994년까지 계속 상장되어온 190여개 상장업체의 재무제표를 사용하여 각 기업별 자본비용을 추정함으로써 산업별(업종별) 그리고 5대(大) 계열기업군, 6대(大)${\sim}$30대(大) 계열기업군, 기타 대기업, 그리고 중소상장기업 등 기업규모별에 따른 자본비용의 정도를 비교 분석하였다. 자본비용의 추정과정에 있어서도 가능한 한 각 개별기업의 재무제표 항목들을 자본비용의 개념에 적합하도록 재구성하고, 법인소득세율을 이익수중에 따라 차등 적용하는 등 기존의 자본비용의 추정에 관한 연구에 비해 좀 더 정교한 자본 비용의 추정을 시도하였다.